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58
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1
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126
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2 /*
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58
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_http.h>
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11
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12
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13 typedef struct ngx_http_proxy_redirect_s ngx_http_proxy_redirect_t;
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14
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15 typedef ngx_int_t (*ngx_http_proxy_redirect_pt)(ngx_http_request_t *r,
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16 ngx_table_elt_t *h, size_t prefix, ngx_http_proxy_redirect_t *pr);
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17
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18 struct ngx_http_proxy_redirect_s {
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200
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19 ngx_http_proxy_redirect_pt handler;
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20 ngx_str_t redirect;
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58
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21
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22 union {
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200
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23 ngx_str_t text;
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58
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24
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25 struct {
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200
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26 void *lengths;
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27 void *values;
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58
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28 } vars;
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29
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200
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30 void *regex;
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58
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31 } replacement;
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32 };
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33
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34
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35 typedef struct {
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200
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36 ngx_http_upstream_conf_t upstream;
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37
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38 ngx_http_upstream_srv_conf_t *upstream_peers;
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39
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40 ngx_array_t *flushes;
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41 ngx_array_t *body_set_len;
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42 ngx_array_t *body_set;
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43 ngx_array_t *headers_set_len;
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44 ngx_array_t *headers_set;
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45 ngx_hash_t headers_set_hash;
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46
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47 ngx_array_t *headers_source;
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48 ngx_array_t *headers_names;
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49
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50 ngx_array_t *redirects;
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51
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52 ngx_str_t body_source;
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53
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54 ngx_str_t method;
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55 ngx_str_t host_header;
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56 ngx_str_t port_text;
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57
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58 ngx_flag_t redirect;
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58
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59 } ngx_http_proxy_loc_conf_t;
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60
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61
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62 typedef struct {
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200
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63 ngx_uint_t status;
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64 ngx_uint_t status_count;
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65 u_char *status_start;
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66 u_char *status_end;
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67
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68 size_t internal_body_length;
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58
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69 } ngx_http_proxy_ctx_t;
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70
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71
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72 #define NGX_HTTP_PROXY_PARSE_NO_HEADER 20
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73
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74
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75 static ngx_int_t ngx_http_proxy_create_request(ngx_http_request_t *r);
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76 static ngx_int_t ngx_http_proxy_reinit_request(ngx_http_request_t *r);
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77 static ngx_int_t ngx_http_proxy_process_status_line(ngx_http_request_t *r);
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78 static ngx_int_t ngx_http_proxy_parse_status_line(ngx_http_request_t *r,
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79 ngx_http_proxy_ctx_t *p);
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80 static ngx_int_t ngx_http_proxy_process_header(ngx_http_request_t *r);
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81 static void ngx_http_proxy_abort_request(ngx_http_request_t *r);
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82 static void ngx_http_proxy_finalize_request(ngx_http_request_t *r,
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83 ngx_int_t rc);
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84
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122
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85 static ngx_int_t ngx_http_proxy_host_variable(ngx_http_request_t *r,
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86 ngx_http_variable_value_t *v, uintptr_t data);
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87 static ngx_int_t ngx_http_proxy_port_variable(ngx_http_request_t *r,
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88 ngx_http_variable_value_t *v, uintptr_t data);
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89 static ngx_int_t
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90 ngx_http_proxy_add_x_forwarded_for_variable(ngx_http_request_t *r,
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122
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91 ngx_http_variable_value_t *v, uintptr_t data);
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126
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92 static ngx_int_t
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93 ngx_http_proxy_internal_body_length_variable(ngx_http_request_t *r,
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94 ngx_http_variable_value_t *v, uintptr_t data);
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58
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95 static ngx_int_t ngx_http_proxy_rewrite_redirect(ngx_http_request_t *r,
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96 ngx_table_elt_t *h, size_t prefix);
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97
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98 static ngx_int_t ngx_http_proxy_add_variables(ngx_conf_t *cf);
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99 static void *ngx_http_proxy_create_loc_conf(ngx_conf_t *cf);
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100 static char *ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf,
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101 void *parent, void *child);
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102
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103 static char *ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd,
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104 void *conf);
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105 static char *ngx_http_proxy_redirect(ngx_conf_t *cf, ngx_command_t *cmd,
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106 void *conf);
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107
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108 static char *ngx_http_proxy_lowat_check(ngx_conf_t *cf, void *post, void *data);
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109
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110
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111 static ngx_conf_post_t ngx_http_proxy_lowat_post =
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112 { ngx_http_proxy_lowat_check };
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113
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130
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114 static ngx_conf_deprecated_t ngx_conf_deprecated_proxy_header_buffer_size = {
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115 ngx_conf_deprecated, "proxy_header_buffer_size", "proxy_buffer_size"
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116 };
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117
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206
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118 static ngx_conf_deprecated_t ngx_conf_deprecated_proxy_redirect_errors = {
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119 ngx_conf_deprecated, "proxy_redirect_errors", "proxy_intercept_errors"
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120 };
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121
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58
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122
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123 static ngx_conf_bitmask_t ngx_http_proxy_next_upstream_masks[] = {
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124 { ngx_string("error"), NGX_HTTP_UPSTREAM_FT_ERROR },
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125 { ngx_string("timeout"), NGX_HTTP_UPSTREAM_FT_TIMEOUT },
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126 { ngx_string("invalid_header"), NGX_HTTP_UPSTREAM_FT_INVALID_HEADER },
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127 { ngx_string("http_500"), NGX_HTTP_UPSTREAM_FT_HTTP_500 },
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172
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128 { ngx_string("http_503"), NGX_HTTP_UPSTREAM_FT_HTTP_503 },
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129 { ngx_string("http_404"), NGX_HTTP_UPSTREAM_FT_HTTP_404 },
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214
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130 { ngx_string("off"), NGX_HTTP_UPSTREAM_FT_OFF },
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58
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131 { ngx_null_string, 0 }
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132 };
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133
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134
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135 static ngx_command_t ngx_http_proxy_commands[] = {
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136
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137 { ngx_string("proxy_pass"),
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178
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138 NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1,
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58
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139 ngx_http_proxy_pass,
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140 NGX_HTTP_LOC_CONF_OFFSET,
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141 0,
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142 NULL },
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143
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144 { ngx_string("proxy_redirect"),
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145 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12,
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146 ngx_http_proxy_redirect,
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147 NGX_HTTP_LOC_CONF_OFFSET,
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148 0,
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149 NULL },
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150
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130
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151 { ngx_string("proxy_buffering"),
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152 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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153 ngx_conf_set_flag_slot,
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154 NGX_HTTP_LOC_CONF_OFFSET,
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155 offsetof(ngx_http_proxy_loc_conf_t, upstream.buffering),
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156 NULL },
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157
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178
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158 { ngx_string("proxy_ignore_client_abort"),
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159 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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160 ngx_conf_set_flag_slot,
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161 NGX_HTTP_LOC_CONF_OFFSET,
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162 offsetof(ngx_http_proxy_loc_conf_t, upstream.ignore_client_abort),
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163 NULL },
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164
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58
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165 { ngx_string("proxy_connect_timeout"),
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166 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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167 ngx_conf_set_msec_slot,
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168 NGX_HTTP_LOC_CONF_OFFSET,
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169 offsetof(ngx_http_proxy_loc_conf_t, upstream.connect_timeout),
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170 NULL },
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171
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172 { ngx_string("proxy_send_timeout"),
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173 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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174 ngx_conf_set_msec_slot,
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175 NGX_HTTP_LOC_CONF_OFFSET,
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176 offsetof(ngx_http_proxy_loc_conf_t, upstream.send_timeout),
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177 NULL },
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178
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179 { ngx_string("proxy_send_lowat"),
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180 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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181 ngx_conf_set_size_slot,
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182 NGX_HTTP_LOC_CONF_OFFSET,
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183 offsetof(ngx_http_proxy_loc_conf_t, upstream.send_lowat),
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184 &ngx_http_proxy_lowat_post },
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185
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206
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186 { ngx_string("proxy_intercept_errors"),
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187 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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188 ngx_conf_set_flag_slot,
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189 NGX_HTTP_LOC_CONF_OFFSET,
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190 offsetof(ngx_http_proxy_loc_conf_t, upstream.intercept_errors),
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191 NULL },
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192
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193 { ngx_string("proxy_redirect_errors"),
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194 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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195 ngx_conf_set_flag_slot,
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196 NGX_HTTP_LOC_CONF_OFFSET,
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206
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197 offsetof(ngx_http_proxy_loc_conf_t, upstream.intercept_errors),
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198 &ngx_conf_deprecated_proxy_redirect_errors },
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199
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200 { ngx_string("proxy_set_header"),
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201 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
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198
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202 ngx_conf_set_keyval_slot,
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203 NGX_HTTP_LOC_CONF_OFFSET,
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204 offsetof(ngx_http_proxy_loc_conf_t, headers_source),
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205 NULL },
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206
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126
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207 { ngx_string("proxy_set_body"),
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208 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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209 ngx_conf_set_str_slot,
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210 NGX_HTTP_LOC_CONF_OFFSET,
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211 offsetof(ngx_http_proxy_loc_conf_t, body_source),
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212 NULL },
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213
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58
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214 { ngx_string("proxy_method"),
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215 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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110
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216 ngx_conf_set_str_slot,
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217 NGX_HTTP_LOC_CONF_OFFSET,
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218 offsetof(ngx_http_proxy_loc_conf_t, method),
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219 NULL },
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220
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221 { ngx_string("proxy_pass_request_headers"),
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222 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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223 ngx_conf_set_flag_slot,
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224 NGX_HTTP_LOC_CONF_OFFSET,
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225 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_request_headers),
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226 NULL },
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227
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228 { ngx_string("proxy_pass_request_body"),
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229 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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230 ngx_conf_set_flag_slot,
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231 NGX_HTTP_LOC_CONF_OFFSET,
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232 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_request_body),
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233 NULL },
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234
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130
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235 { ngx_string("proxy_buffer_size"),
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236 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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237 ngx_conf_set_size_slot,
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238 NGX_HTTP_LOC_CONF_OFFSET,
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239 offsetof(ngx_http_proxy_loc_conf_t, upstream.buffer_size),
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240 NULL },
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241
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58
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242 { ngx_string("proxy_header_buffer_size"),
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243 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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244 ngx_conf_set_size_slot,
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245 NGX_HTTP_LOC_CONF_OFFSET,
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130
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246 offsetof(ngx_http_proxy_loc_conf_t, upstream.buffer_size),
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247 &ngx_conf_deprecated_proxy_header_buffer_size },
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58
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248
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249 { ngx_string("proxy_read_timeout"),
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250 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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251 ngx_conf_set_msec_slot,
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252 NGX_HTTP_LOC_CONF_OFFSET,
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253 offsetof(ngx_http_proxy_loc_conf_t, upstream.read_timeout),
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254 NULL },
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255
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256 { ngx_string("proxy_buffers"),
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257 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2,
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258 ngx_conf_set_bufs_slot,
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259 NGX_HTTP_LOC_CONF_OFFSET,
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260 offsetof(ngx_http_proxy_loc_conf_t, upstream.bufs),
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261 NULL },
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262
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263 { ngx_string("proxy_busy_buffers_size"),
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264 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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265 ngx_conf_set_size_slot,
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266 NGX_HTTP_LOC_CONF_OFFSET,
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78
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267 offsetof(ngx_http_proxy_loc_conf_t, upstream.busy_buffers_size_conf),
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58
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268 NULL },
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269
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270 { ngx_string("proxy_temp_path"),
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271 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1234,
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272 ngx_conf_set_path_slot,
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273 NGX_HTTP_LOC_CONF_OFFSET,
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274 offsetof(ngx_http_proxy_loc_conf_t, upstream.temp_path),
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275 (void *) ngx_garbage_collector_temp_handler },
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276
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277 { ngx_string("proxy_max_temp_file_size"),
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278 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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279 ngx_conf_set_size_slot,
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280 NGX_HTTP_LOC_CONF_OFFSET,
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78
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281 offsetof(ngx_http_proxy_loc_conf_t, upstream.max_temp_file_size_conf),
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58
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282 NULL },
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283
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284 { ngx_string("proxy_temp_file_write_size"),
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285 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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286 ngx_conf_set_size_slot,
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287 NGX_HTTP_LOC_CONF_OFFSET,
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78
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288 offsetof(ngx_http_proxy_loc_conf_t, upstream.temp_file_write_size_conf),
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58
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289 NULL },
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290
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291 { ngx_string("proxy_next_upstream"),
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96
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292 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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58
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293 ngx_conf_set_bitmask_slot,
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294 NGX_HTTP_LOC_CONF_OFFSET,
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295 offsetof(ngx_http_proxy_loc_conf_t, upstream.next_upstream),
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296 &ngx_http_proxy_next_upstream_masks },
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297
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110
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298 { ngx_string("proxy_upstream_max_fails"),
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299 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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300 ngx_conf_set_num_slot,
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301 NGX_HTTP_LOC_CONF_OFFSET,
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302 offsetof(ngx_http_proxy_loc_conf_t, upstream.max_fails),
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303 NULL },
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304
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305 { ngx_string("proxy_upstream_fail_timeout"),
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306 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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307 ngx_conf_set_sec_slot,
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308 NGX_HTTP_LOC_CONF_OFFSET,
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309 offsetof(ngx_http_proxy_loc_conf_t, upstream.fail_timeout),
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310 NULL },
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311
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198
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312 { ngx_string("proxy_pass_header"),
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58
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313 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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198
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314 ngx_conf_set_str_array_slot,
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58
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315 NGX_HTTP_LOC_CONF_OFFSET,
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198
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316 offsetof(ngx_http_proxy_loc_conf_t, upstream.pass_headers),
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58
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317 NULL },
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318
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198
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319 { ngx_string("proxy_hide_header"),
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58
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320 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG,
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198
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321 ngx_conf_set_str_array_slot,
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58
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322 NGX_HTTP_LOC_CONF_OFFSET,
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198
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323 offsetof(ngx_http_proxy_loc_conf_t, upstream.hide_headers),
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58
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324 NULL },
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325
|
|
|
326 ngx_null_command
|
|
|
327 };
|
|
|
328
|
|
|
329
|
|
216
|
330 static ngx_http_module_t ngx_http_proxy_module_ctx = {
|
|
58
|
331 ngx_http_proxy_add_variables, /* preconfiguration */
|
|
|
332 NULL, /* postconfiguration */
|
|
|
333
|
|
|
334 NULL, /* create main configuration */
|
|
|
335 NULL, /* init main configuration */
|
|
|
336
|
|
|
337 NULL, /* create server configuration */
|
|
|
338 NULL, /* merge server configuration */
|
|
|
339
|
|
|
340 ngx_http_proxy_create_loc_conf, /* create location configration */
|
|
|
341 ngx_http_proxy_merge_loc_conf /* merge location configration */
|
|
|
342 };
|
|
|
343
|
|
|
344
|
|
|
345 ngx_module_t ngx_http_proxy_module = {
|
|
|
346 NGX_MODULE_V1,
|
|
|
347 &ngx_http_proxy_module_ctx, /* module context */
|
|
|
348 ngx_http_proxy_commands, /* module directives */
|
|
|
349 NGX_HTTP_MODULE, /* module type */
|
|
90
|
350 NULL, /* init master */
|
|
58
|
351 NULL, /* init module */
|
|
90
|
352 NULL, /* init process */
|
|
|
353 NULL, /* init thread */
|
|
|
354 NULL, /* exit thread */
|
|
|
355 NULL, /* exit process */
|
|
|
356 NULL, /* exit master */
|
|
|
357 NGX_MODULE_V1_PADDING
|
|
58
|
358 };
|
|
|
359
|
|
|
360
|
|
|
361 static char ngx_http_proxy_version[] = " HTTP/1.0" CRLF;
|
|
|
362
|
|
|
363
|
|
198
|
364 static ngx_keyval_t ngx_http_proxy_headers[] = {
|
|
|
365 { ngx_string("Host"), ngx_string("$proxy_host") },
|
|
|
366 { ngx_string("Connection"), ngx_string("close") },
|
|
|
367 { ngx_string("Keep-Alive"), ngx_string("") },
|
|
|
368 { ngx_null_string, ngx_null_string }
|
|
|
369 };
|
|
|
370
|
|
|
371
|
|
|
372 static ngx_str_t ngx_http_proxy_hide_headers[] = {
|
|
|
373 ngx_string("Date"),
|
|
|
374 ngx_string("Server"),
|
|
|
375 ngx_string("X-Pad"),
|
|
|
376 ngx_string("X-Accel-Expires"),
|
|
|
377 ngx_string("X-Accel-Redirect"),
|
|
|
378 ngx_string("X-Accel-Limit-Rate"),
|
|
|
379 ngx_string("X-Accel-Buffer"),
|
|
|
380 ngx_null_string
|
|
58
|
381 };
|
|
|
382
|
|
|
383
|
|
|
384 static ngx_http_variable_t ngx_http_proxy_vars[] = {
|
|
|
385
|
|
186
|
386 { ngx_string("proxy_host"), NULL, ngx_http_proxy_host_variable, 0,
|
|
132
|
387 NGX_HTTP_VAR_CHANGABLE|NGX_HTTP_VAR_NOHASH, 0 },
|
|
58
|
388
|
|
186
|
389 { ngx_string("proxy_port"), NULL, ngx_http_proxy_port_variable, 0,
|
|
132
|
390 NGX_HTTP_VAR_CHANGABLE|NGX_HTTP_VAR_NOHASH, 0 },
|
|
58
|
391
|
|
186
|
392 { ngx_string("proxy_add_x_forwarded_for"), NULL,
|
|
132
|
393 ngx_http_proxy_add_x_forwarded_for_variable, 0, NGX_HTTP_VAR_NOHASH, 0 },
|
|
58
|
394
|
|
|
395 #if 0
|
|
186
|
396 { ngx_string("proxy_add_via"), NULL, NULL, 0, NGX_HTTP_VAR_NOHASH, 0 },
|
|
58
|
397 #endif
|
|
|
398
|
|
186
|
399 { ngx_string("proxy_internal_body_length"), NULL,
|
|
132
|
400 ngx_http_proxy_internal_body_length_variable, 0, NGX_HTTP_VAR_NOHASH, 0 },
|
|
126
|
401
|
|
186
|
402 { ngx_null_string, NULL, NULL, 0, 0, 0 }
|
|
58
|
403 };
|
|
|
404
|
|
|
405
|
|
|
406 static ngx_int_t
|
|
|
407 ngx_http_proxy_handler(ngx_http_request_t *r)
|
|
126
|
408 {
|
|
58
|
409 ngx_int_t rc;
|
|
|
410 ngx_http_upstream_t *u;
|
|
|
411 ngx_http_proxy_loc_conf_t *plcf;
|
|
126
|
412
|
|
58
|
413 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
126
|
414
|
|
58
|
415 u = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_t));
|
|
|
416 if (u == NULL) {
|
|
|
417 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
418 }
|
|
126
|
419
|
|
58
|
420 u->peer.log = r->connection->log;
|
|
|
421 u->peer.log_error = NGX_ERROR_ERR;
|
|
200
|
422 u->peer.peers = plcf->upstream_peers->peers;
|
|
|
423 u->peer.tries = plcf->upstream_peers->peers->number;
|
|
58
|
424 #if (NGX_THREADS)
|
|
|
425 u->peer.lock = &r->connection->lock;
|
|
|
426 #endif
|
|
|
427
|
|
|
428 u->output.tag = (ngx_buf_tag_t) &ngx_http_proxy_module;
|
|
|
429
|
|
|
430 u->conf = &plcf->upstream;
|
|
|
431
|
|
|
432 u->create_request = ngx_http_proxy_create_request;
|
|
|
433 u->reinit_request = ngx_http_proxy_reinit_request;
|
|
|
434 u->process_header = ngx_http_proxy_process_status_line;
|
|
|
435 u->abort_request = ngx_http_proxy_abort_request;
|
|
|
436 u->finalize_request = ngx_http_proxy_finalize_request;
|
|
|
437
|
|
|
438 if (plcf->redirects) {
|
|
|
439 u->rewrite_redirect = ngx_http_proxy_rewrite_redirect;
|
|
|
440 }
|
|
|
441
|
|
198
|
442 u->buffering = plcf->upstream.buffering;
|
|
|
443
|
|
|
444 u->pipe = ngx_pcalloc(r->pool, sizeof(ngx_event_pipe_t));
|
|
|
445 if (u->pipe == NULL) {
|
|
|
446 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
130
|
447 }
|
|
58
|
448
|
|
198
|
449 u->pipe->input_filter = ngx_event_pipe_copy_input_filter;
|
|
|
450
|
|
58
|
451 u->accel = 1;
|
|
126
|
452
|
|
58
|
453 r->upstream = u;
|
|
|
454
|
|
|
455 rc = ngx_http_read_client_request_body(r, ngx_http_upstream_init);
|
|
|
456
|
|
|
457 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
|
|
|
458 return rc;
|
|
|
459 }
|
|
|
460
|
|
|
461 return NGX_DONE;
|
|
|
462 }
|
|
|
463
|
|
|
464
|
|
|
465 static ngx_int_t
|
|
|
466 ngx_http_proxy_create_request(ngx_http_request_t *r)
|
|
|
467 {
|
|
126
|
468 size_t len, loc_len, body_len;
|
|
58
|
469 uintptr_t escape;
|
|
|
470 ngx_buf_t *b;
|
|
198
|
471 ngx_str_t method;
|
|
|
472 ngx_uint_t i, unparsed_uri;
|
|
58
|
473 ngx_chain_t *cl, *body;
|
|
|
474 ngx_list_part_t *part;
|
|
|
475 ngx_table_elt_t *header;
|
|
|
476 ngx_http_upstream_t *u;
|
|
126
|
477 ngx_http_proxy_ctx_t *p;
|
|
58
|
478 ngx_http_script_code_pt code;
|
|
|
479 ngx_http_script_engine_t e, le;
|
|
|
480 ngx_http_proxy_loc_conf_t *plcf;
|
|
|
481 ngx_http_script_len_code_pt lcode;
|
|
|
482
|
|
|
483 u = r->upstream;
|
|
|
484
|
|
|
485 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
|
486
|
|
126
|
487 p = ngx_pcalloc(r->pool, sizeof(ngx_http_proxy_ctx_t));
|
|
|
488 if (p == NULL) {
|
|
|
489 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
490 }
|
|
|
491
|
|
|
492 ngx_http_set_ctx(r, p, ngx_http_proxy_module);
|
|
|
493
|
|
58
|
494 len = sizeof(ngx_http_proxy_version) - 1 + sizeof(CRLF) - 1;
|
|
|
495
|
|
110
|
496 if (u->method.len) {
|
|
|
497 /* HEAD was changed to GET to cache response */
|
|
|
498 method = u->method;
|
|
|
499 method.len++;
|
|
|
500
|
|
|
501 } else if (plcf->method.len) {
|
|
|
502 method = plcf->method;
|
|
|
503
|
|
58
|
504 } else {
|
|
110
|
505 method = r->method_name;
|
|
|
506 method.len++;
|
|
58
|
507 }
|
|
|
508
|
|
110
|
509 len += method.len + u->conf->uri.len;
|
|
|
510
|
|
58
|
511 escape = 0;
|
|
|
512
|
|
176
|
513 loc_len = (r->valid_location && u->conf->uri.len) ? u->conf->location.len:
|
|
|
514 0;
|
|
58
|
515
|
|
158
|
516 if (u->conf->uri.len == 0 && r->valid_unparsed_uri && r == r->main) {
|
|
|
517 unparsed_uri = 1;
|
|
88
|
518 len += r->unparsed_uri.len;
|
|
58
|
519
|
|
|
520 } else {
|
|
158
|
521 unparsed_uri = 0;
|
|
58
|
522 if (r->quoted_uri) {
|
|
|
523 escape = 2 * ngx_escape_uri(NULL, r->uri.data + loc_len,
|
|
|
524 r->uri.len - loc_len, NGX_ESCAPE_URI);
|
|
|
525 }
|
|
|
526
|
|
|
527 len += r->uri.len - loc_len + escape + sizeof("?") - 1 + r->args.len;
|
|
|
528 }
|
|
|
529
|
|
122
|
530 ngx_http_script_flush_no_cachable_variables(r, plcf->flushes);
|
|
|
531
|
|
126
|
532 if (plcf->body_set_len) {
|
|
|
533 le.ip = plcf->body_set_len->elts;
|
|
|
534 le.request = r;
|
|
|
535 le.flushed = 1;
|
|
|
536 body_len = 0;
|
|
|
537
|
|
|
538 while (*(uintptr_t *) le.ip) {
|
|
|
539 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
540 body_len += lcode(&le);
|
|
|
541 }
|
|
|
542
|
|
|
543 p->internal_body_length = body_len;
|
|
|
544 len += body_len;
|
|
|
545 }
|
|
|
546
|
|
58
|
547 le.ip = plcf->headers_set_len->elts;
|
|
|
548 le.request = r;
|
|
122
|
549 le.flushed = 1;
|
|
58
|
550
|
|
|
551 while (*(uintptr_t *) le.ip) {
|
|
|
552 while (*(uintptr_t *) le.ip) {
|
|
|
553 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
554 len += lcode(&le);
|
|
|
555 }
|
|
|
556 le.ip += sizeof(uintptr_t);
|
|
|
557 }
|
|
|
558
|
|
|
559
|
|
|
560 if (plcf->upstream.pass_request_headers) {
|
|
|
561 part = &r->headers_in.headers.part;
|
|
|
562 header = part->elts;
|
|
|
563
|
|
|
564 for (i = 0; /* void */; i++) {
|
|
|
565
|
|
|
566 if (i >= part->nelts) {
|
|
|
567 if (part->next == NULL) {
|
|
|
568 break;
|
|
|
569 }
|
|
|
570
|
|
|
571 part = part->next;
|
|
|
572 header = part->elts;
|
|
126
|
573 i = 0;
|
|
58
|
574 }
|
|
|
575
|
|
198
|
576 if (ngx_hash_find(&plcf->headers_set_hash, header[i].hash,
|
|
|
577 header[i].lowcase_key, header[i].key.len))
|
|
58
|
578 {
|
|
|
579 continue;
|
|
|
580 }
|
|
|
581
|
|
|
582 len += header[i].key.len + sizeof(": ") - 1
|
|
|
583 + header[i].value.len + sizeof(CRLF) - 1;
|
|
|
584 }
|
|
|
585 }
|
|
|
586
|
|
|
587
|
|
|
588 b = ngx_create_temp_buf(r->pool, len);
|
|
|
589 if (b == NULL) {
|
|
|
590 return NGX_ERROR;
|
|
|
591 }
|
|
|
592
|
|
|
593 cl = ngx_alloc_chain_link(r->pool);
|
|
|
594 if (cl == NULL) {
|
|
|
595 return NGX_ERROR;
|
|
|
596 }
|
|
|
597
|
|
|
598 cl->buf = b;
|
|
|
599
|
|
|
600
|
|
|
601 /* the request line */
|
|
|
602
|
|
122
|
603 b->last = ngx_copy(b->last, method.data, method.len);
|
|
58
|
604
|
|
104
|
605 u->uri.data = b->last;
|
|
|
606
|
|
158
|
607 if (unparsed_uri) {
|
|
122
|
608 b->last = ngx_copy(b->last, r->unparsed_uri.data, r->unparsed_uri.len);
|
|
|
609
|
|
58
|
610 } else {
|
|
104
|
611 if (r->valid_location) {
|
|
122
|
612 b->last = ngx_copy(b->last, u->conf->uri.data, u->conf->uri.len);
|
|
104
|
613 }
|
|
100
|
614
|
|
58
|
615 if (escape) {
|
|
|
616 ngx_escape_uri(b->last, r->uri.data + loc_len,
|
|
|
617 r->uri.len - loc_len, NGX_ESCAPE_URI);
|
|
|
618 b->last += r->uri.len - loc_len + escape;
|
|
|
619
|
|
126
|
620 } else {
|
|
122
|
621 b->last = ngx_copy(b->last, r->uri.data + loc_len,
|
|
|
622 r->uri.len - loc_len);
|
|
58
|
623 }
|
|
|
624
|
|
|
625 if (r->args.len > 0) {
|
|
|
626 *b->last++ = '?';
|
|
122
|
627 b->last = ngx_copy(b->last, r->args.data, r->args.len);
|
|
58
|
628 }
|
|
|
629 }
|
|
|
630
|
|
104
|
631 u->uri.len = b->last - u->uri.data;
|
|
|
632
|
|
58
|
633 b->last = ngx_cpymem(b->last, ngx_http_proxy_version,
|
|
|
634 sizeof(ngx_http_proxy_version) - 1);
|
|
|
635
|
|
126
|
636 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
|
|
58
|
637
|
|
|
638 e.ip = plcf->headers_set->elts;
|
|
|
639 e.pos = b->last;
|
|
|
640 e.request = r;
|
|
122
|
641 e.flushed = 1;
|
|
58
|
642
|
|
|
643 le.ip = plcf->headers_set_len->elts;
|
|
|
644
|
|
|
645 while (*(uintptr_t *) le.ip) {
|
|
|
646 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
64
|
647
|
|
|
648 /* skip the header line name length */
|
|
|
649 (void) lcode(&le);
|
|
58
|
650
|
|
|
651 if (*(ngx_http_script_len_code_pt *) le.ip) {
|
|
|
652
|
|
|
653 for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) {
|
|
|
654 lcode = *(ngx_http_script_len_code_pt *) le.ip;
|
|
|
655 }
|
|
|
656
|
|
|
657 e.skip = (len == sizeof(CRLF) - 1) ? 1 : 0;
|
|
|
658
|
|
|
659 } else {
|
|
|
660 e.skip = 0;
|
|
|
661 }
|
|
|
662
|
|
|
663 le.ip += sizeof(uintptr_t);
|
|
|
664
|
|
|
665 while (*(uintptr_t *) e.ip) {
|
|
|
666 code = *(ngx_http_script_code_pt *) e.ip;
|
|
|
667 code((ngx_http_script_engine_t *) &e);
|
|
126
|
668 }
|
|
58
|
669 e.ip += sizeof(uintptr_t);
|
|
|
670 }
|
|
|
671
|
|
|
672 b->last = e.pos;
|
|
|
673
|
|
|
674
|
|
|
675 if (plcf->upstream.pass_request_headers) {
|
|
|
676 part = &r->headers_in.headers.part;
|
|
|
677 header = part->elts;
|
|
126
|
678
|
|
58
|
679 for (i = 0; /* void */; i++) {
|
|
|
680
|
|
|
681 if (i >= part->nelts) {
|
|
|
682 if (part->next == NULL) {
|
|
|
683 break;
|
|
|
684 }
|
|
|
685
|
|
|
686 part = part->next;
|
|
|
687 header = part->elts;
|
|
126
|
688 i = 0;
|
|
58
|
689 }
|
|
|
690
|
|
198
|
691 if (ngx_hash_find(&plcf->headers_set_hash, header[i].hash,
|
|
|
692 header[i].lowcase_key, header[i].key.len))
|
|
58
|
693 {
|
|
|
694 continue;
|
|
|
695 }
|
|
|
696
|
|
122
|
697 b->last = ngx_copy(b->last, header[i].key.data, header[i].key.len);
|
|
58
|
698
|
|
|
699 *b->last++ = ':'; *b->last++ = ' ';
|
|
|
700
|
|
122
|
701 b->last = ngx_copy(b->last, header[i].value.data,
|
|
|
702 header[i].value.len);
|
|
58
|
703
|
|
|
704 *b->last++ = CR; *b->last++ = LF;
|
|
|
705
|
|
|
706 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
707 "http proxy header: \"%V: %V\"",
|
|
|
708 &header[i].key, &header[i].value);
|
|
|
709 }
|
|
|
710 }
|
|
|
711
|
|
126
|
712
|
|
58
|
713 /* add "\r\n" at the header end */
|
|
|
714 *b->last++ = CR; *b->last++ = LF;
|
|
|
715
|
|
126
|
716 if (plcf->body_set) {
|
|
|
717 e.ip = plcf->body_set->elts;
|
|
|
718 e.pos = b->last;
|
|
|
719
|
|
|
720 while (*(uintptr_t *) e.ip) {
|
|
|
721 code = *(ngx_http_script_code_pt *) e.ip;
|
|
|
722 code((ngx_http_script_engine_t *) &e);
|
|
|
723 }
|
|
128
|
724
|
|
|
725 b->last = e.pos;
|
|
126
|
726 }
|
|
|
727
|
|
58
|
728 #if (NGX_DEBUG)
|
|
|
729 {
|
|
|
730 ngx_str_t s;
|
|
|
731
|
|
|
732 s.len = b->last - b->pos;
|
|
|
733 s.data = b->pos;
|
|
|
734 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
735 "http proxy header:\n\"%V\"", &s);
|
|
|
736 }
|
|
|
737 #endif
|
|
|
738
|
|
126
|
739 if (plcf->body_set == NULL && plcf->upstream.pass_request_body) {
|
|
58
|
740
|
|
|
741 body = u->request_bufs;
|
|
|
742 u->request_bufs = cl;
|
|
|
743
|
|
|
744 while (body) {
|
|
|
745 b = ngx_alloc_buf(r->pool);
|
|
|
746 if (b == NULL) {
|
|
|
747 return NGX_ERROR;
|
|
|
748 }
|
|
|
749
|
|
|
750 ngx_memcpy(b, body->buf, sizeof(ngx_buf_t));
|
|
|
751
|
|
|
752 cl->next = ngx_alloc_chain_link(r->pool);
|
|
|
753 if (cl->next == NULL) {
|
|
|
754 return NGX_ERROR;
|
|
|
755 }
|
|
|
756
|
|
|
757 cl = cl->next;
|
|
|
758 cl->buf = b;
|
|
|
759
|
|
|
760 body = body->next;
|
|
|
761 }
|
|
|
762
|
|
160
|
763 b->flush = 1;
|
|
|
764
|
|
58
|
765 } else {
|
|
|
766 u->request_bufs = cl;
|
|
|
767 }
|
|
|
768
|
|
|
769 cl->next = NULL;
|
|
|
770
|
|
|
771 return NGX_OK;
|
|
|
772 }
|
|
|
773
|
|
|
774
|
|
|
775 static ngx_int_t
|
|
|
776 ngx_http_proxy_reinit_request(ngx_http_request_t *r)
|
|
|
777 {
|
|
|
778 ngx_http_proxy_ctx_t *p;
|
|
|
779
|
|
|
780 p = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
|
781
|
|
|
782 if (p == NULL) {
|
|
|
783 return NGX_OK;
|
|
|
784 }
|
|
|
785
|
|
|
786 p->status = 0;
|
|
|
787 p->status_count = 0;
|
|
|
788 p->status_start = NULL;
|
|
|
789 p->status_end = NULL;
|
|
|
790
|
|
|
791 r->upstream->process_header = ngx_http_proxy_process_status_line;
|
|
|
792
|
|
|
793 return NGX_OK;
|
|
|
794 }
|
|
|
795
|
|
|
796
|
|
|
797 static ngx_int_t
|
|
|
798 ngx_http_proxy_process_status_line(ngx_http_request_t *r)
|
|
|
799 {
|
|
|
800 ngx_int_t rc;
|
|
|
801 ngx_http_upstream_t *u;
|
|
|
802 ngx_http_proxy_ctx_t *p;
|
|
|
803
|
|
|
804 p = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
|
805
|
|
|
806 if (p == NULL) {
|
|
126
|
807 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
58
|
808 }
|
|
|
809
|
|
|
810 rc = ngx_http_proxy_parse_status_line(r, p);
|
|
|
811
|
|
|
812 if (rc == NGX_AGAIN) {
|
|
|
813 return rc;
|
|
|
814 }
|
|
|
815
|
|
|
816 u = r->upstream;
|
|
|
817
|
|
|
818 if (rc == NGX_HTTP_PROXY_PARSE_NO_HEADER) {
|
|
|
819 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
126
|
820 "upstream sent no valid HTTP/1.0 header");
|
|
58
|
821
|
|
168
|
822 #if 0
|
|
58
|
823 if (u->accel) {
|
|
|
824 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
|
|
|
825 }
|
|
168
|
826 #endif
|
|
58
|
827
|
|
|
828 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
829 p->status = NGX_HTTP_OK;
|
|
126
|
830
|
|
58
|
831 return NGX_OK;
|
|
|
832 }
|
|
|
833
|
|
78
|
834 u->headers_in.status_n = p->status;
|
|
58
|
835 u->state->status = p->status;
|
|
|
836
|
|
78
|
837 u->headers_in.status_line.len = p->status_end - p->status_start;
|
|
|
838 u->headers_in.status_line.data = ngx_palloc(r->pool,
|
|
|
839 u->headers_in.status_line.len);
|
|
|
840 if (u->headers_in.status_line.data == NULL) {
|
|
58
|
841 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
842 }
|
|
122
|
843
|
|
78
|
844 ngx_memcpy(u->headers_in.status_line.data, p->status_start,
|
|
|
845 u->headers_in.status_line.len);
|
|
58
|
846
|
|
|
847 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
848 "http proxy status %ui \"%V\"",
|
|
78
|
849 u->headers_in.status, &u->headers_in.status_line);
|
|
58
|
850
|
|
|
851 u->process_header = ngx_http_proxy_process_header;
|
|
|
852
|
|
|
853 return ngx_http_proxy_process_header(r);
|
|
|
854 }
|
|
|
855
|
|
|
856
|
|
|
857 static ngx_int_t
|
|
|
858 ngx_http_proxy_parse_status_line(ngx_http_request_t *r, ngx_http_proxy_ctx_t *p)
|
|
|
859 {
|
|
|
860 u_char ch;
|
|
|
861 u_char *pos;
|
|
|
862 ngx_http_upstream_t *u;
|
|
|
863 enum {
|
|
|
864 sw_start = 0,
|
|
|
865 sw_H,
|
|
|
866 sw_HT,
|
|
|
867 sw_HTT,
|
|
|
868 sw_HTTP,
|
|
|
869 sw_first_major_digit,
|
|
|
870 sw_major_digit,
|
|
|
871 sw_first_minor_digit,
|
|
|
872 sw_minor_digit,
|
|
|
873 sw_status,
|
|
|
874 sw_space_after_status,
|
|
|
875 sw_status_text,
|
|
|
876 sw_almost_done
|
|
126
|
877 } state;
|
|
58
|
878
|
|
|
879 u = r->upstream;
|
|
|
880
|
|
|
881 state = r->state;
|
|
|
882
|
|
130
|
883 for (pos = u->buffer.pos; pos < u->buffer.last; pos++) {
|
|
58
|
884 ch = *pos;
|
|
|
885
|
|
|
886 switch (state) {
|
|
|
887
|
|
|
888 /* "HTTP/" */
|
|
|
889 case sw_start:
|
|
|
890 switch (ch) {
|
|
126
|
891 case 'H':
|
|
58
|
892 state = sw_H;
|
|
|
893 break;
|
|
|
894 default:
|
|
|
895 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
896 }
|
|
|
897 break;
|
|
|
898
|
|
126
|
899 case sw_H:
|
|
58
|
900 switch (ch) {
|
|
126
|
901 case 'T':
|
|
58
|
902 state = sw_HT;
|
|
|
903 break;
|
|
|
904 default:
|
|
|
905 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
906 }
|
|
|
907 break;
|
|
|
908
|
|
|
909 case sw_HT:
|
|
|
910 switch (ch) {
|
|
126
|
911 case 'T':
|
|
58
|
912 state = sw_HTT;
|
|
|
913 break;
|
|
|
914 default:
|
|
|
915 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
916 }
|
|
|
917 break;
|
|
|
918
|
|
|
919 case sw_HTT:
|
|
|
920 switch (ch) {
|
|
126
|
921 case 'P':
|
|
58
|
922 state = sw_HTTP;
|
|
|
923 break;
|
|
|
924 default:
|
|
|
925 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
926 }
|
|
|
927 break;
|
|
|
928
|
|
|
929 case sw_HTTP:
|
|
|
930 switch (ch) {
|
|
126
|
931 case '/':
|
|
58
|
932 state = sw_first_major_digit;
|
|
|
933 break;
|
|
|
934 default:
|
|
|
935 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
936 }
|
|
|
937 break;
|
|
|
938
|
|
|
939 /* the first digit of major HTTP version */
|
|
|
940 case sw_first_major_digit:
|
|
|
941 if (ch < '1' || ch > '9') {
|
|
|
942 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
943 }
|
|
|
944
|
|
|
945 state = sw_major_digit;
|
|
|
946 break;
|
|
|
947
|
|
|
948 /* the major HTTP version or dot */
|
|
|
949 case sw_major_digit:
|
|
|
950 if (ch == '.') {
|
|
|
951 state = sw_first_minor_digit;
|
|
|
952 break;
|
|
|
953 }
|
|
|
954
|
|
|
955 if (ch < '0' || ch > '9') {
|
|
|
956 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
957 }
|
|
|
958
|
|
|
959 break;
|
|
|
960
|
|
|
961 /* the first digit of minor HTTP version */
|
|
|
962 case sw_first_minor_digit:
|
|
|
963 if (ch < '0' || ch > '9') {
|
|
|
964 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
965 }
|
|
|
966
|
|
|
967 state = sw_minor_digit;
|
|
|
968 break;
|
|
|
969
|
|
|
970 /* the minor HTTP version or the end of the request line */
|
|
|
971 case sw_minor_digit:
|
|
|
972 if (ch == ' ') {
|
|
|
973 state = sw_status;
|
|
|
974 break;
|
|
|
975 }
|
|
|
976
|
|
|
977 if (ch < '0' || ch > '9') {
|
|
|
978 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
979 }
|
|
|
980
|
|
|
981 break;
|
|
|
982
|
|
|
983 /* HTTP status code */
|
|
|
984 case sw_status:
|
|
168
|
985 if (ch == ' ') {
|
|
|
986 break;
|
|
|
987 }
|
|
|
988
|
|
58
|
989 if (ch < '0' || ch > '9') {
|
|
|
990 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
991 }
|
|
|
992
|
|
|
993 p->status = p->status * 10 + ch - '0';
|
|
|
994
|
|
|
995 if (++p->status_count == 3) {
|
|
|
996 state = sw_space_after_status;
|
|
|
997 p->status_start = pos - 2;
|
|
|
998 }
|
|
|
999
|
|
|
1000 break;
|
|
|
1001
|
|
|
1002 /* space or end of line */
|
|
|
1003 case sw_space_after_status:
|
|
|
1004 switch (ch) {
|
|
126
|
1005 case ' ':
|
|
58
|
1006 state = sw_status_text;
|
|
|
1007 break;
|
|
|
1008 case '.': /* IIS may send 403.1, 403.2, etc */
|
|
|
1009 state = sw_status_text;
|
|
|
1010 break;
|
|
|
1011 case CR:
|
|
|
1012 state = sw_almost_done;
|
|
|
1013 break;
|
|
|
1014 case LF:
|
|
|
1015 goto done;
|
|
|
1016 default:
|
|
|
1017 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
1018 }
|
|
|
1019 break;
|
|
|
1020
|
|
|
1021 /* any text until end of line */
|
|
|
1022 case sw_status_text:
|
|
|
1023 switch (ch) {
|
|
|
1024 case CR:
|
|
|
1025 state = sw_almost_done;
|
|
|
1026
|
|
|
1027 break;
|
|
|
1028 case LF:
|
|
|
1029 goto done;
|
|
|
1030 }
|
|
|
1031 break;
|
|
|
1032
|
|
76
|
1033 /* end of status line */
|
|
58
|
1034 case sw_almost_done:
|
|
|
1035 p->status_end = pos - 1;
|
|
|
1036 switch (ch) {
|
|
|
1037 case LF:
|
|
|
1038 goto done;
|
|
|
1039 default:
|
|
|
1040 return NGX_HTTP_PROXY_PARSE_NO_HEADER;
|
|
|
1041 }
|
|
|
1042 }
|
|
|
1043 }
|
|
|
1044
|
|
130
|
1045 u->buffer.pos = pos;
|
|
58
|
1046 r->state = state;
|
|
|
1047
|
|
|
1048 return NGX_AGAIN;
|
|
|
1049
|
|
|
1050 done:
|
|
|
1051
|
|
130
|
1052 u->buffer.pos = pos + 1;
|
|
58
|
1053
|
|
|
1054 if (p->status_end == NULL) {
|
|
|
1055 p->status_end = pos;
|
|
|
1056 }
|
|
|
1057
|
|
|
1058 r->state = sw_start;
|
|
|
1059
|
|
|
1060 return NGX_OK;
|
|
|
1061 }
|
|
|
1062
|
|
|
1063
|
|
|
1064 static ngx_int_t
|
|
|
1065 ngx_http_proxy_process_header(ngx_http_request_t *r)
|
|
|
1066 {
|
|
|
1067 ngx_int_t rc;
|
|
198
|
1068 ngx_uint_t i;
|
|
58
|
1069 ngx_table_elt_t *h;
|
|
|
1070 ngx_http_upstream_header_t *hh;
|
|
|
1071 ngx_http_upstream_main_conf_t *umcf;
|
|
|
1072
|
|
|
1073 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
|
1074
|
|
|
1075 for ( ;; ) {
|
|
|
1076
|
|
130
|
1077 rc = ngx_http_parse_header_line(r, &r->upstream->buffer);
|
|
58
|
1078
|
|
|
1079 if (rc == NGX_OK) {
|
|
|
1080
|
|
|
1081 /* a header line has been parsed successfully */
|
|
|
1082
|
|
|
1083 h = ngx_list_push(&r->upstream->headers_in.headers);
|
|
|
1084 if (h == NULL) {
|
|
|
1085 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1086 }
|
|
|
1087
|
|
|
1088 h->hash = r->header_hash;
|
|
|
1089
|
|
|
1090 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
1091 h->value.len = r->header_end - r->header_start;
|
|
|
1092
|
|
|
1093 h->key.data = ngx_palloc(r->pool,
|
|
198
|
1094 h->key.len + 1 + h->value.len + 1 + h->key.len);
|
|
58
|
1095 if (h->key.data == NULL) {
|
|
|
1096 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1097 }
|
|
|
1098
|
|
|
1099 h->value.data = h->key.data + h->key.len + 1;
|
|
198
|
1100 h->lowcase_key = h->key.data + h->key.len + 1 + h->value.len + 1;
|
|
58
|
1101
|
|
|
1102 ngx_cpystrn(h->key.data, r->header_name_start, h->key.len + 1);
|
|
|
1103 ngx_cpystrn(h->value.data, r->header_start, h->value.len + 1);
|
|
|
1104
|
|
198
|
1105 if (h->key.len == r->lowcase_index) {
|
|
|
1106 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
|
|
|
1107
|
|
|
1108 } else {
|
|
|
1109 for (i = 0; i < h->key.len; i++) {
|
|
|
1110 h->lowcase_key[i] = ngx_tolower(h->lowcase_key[i]);
|
|
58
|
1111 }
|
|
|
1112 }
|
|
|
1113
|
|
198
|
1114 hh = ngx_hash_find(&umcf->headers_in_hash, h->hash,
|
|
|
1115 h->lowcase_key, h->key.len);
|
|
|
1116
|
|
|
1117 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
|
|
|
1118 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1119 }
|
|
|
1120
|
|
58
|
1121 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1122 "http proxy header: \"%V: %V\"",
|
|
|
1123 &h->key, &h->value);
|
|
|
1124
|
|
|
1125 continue;
|
|
|
1126 }
|
|
|
1127
|
|
|
1128 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
|
1129
|
|
|
1130 /* a whole header has been parsed successfully */
|
|
|
1131
|
|
|
1132 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1133 "http proxy header done");
|
|
|
1134
|
|
198
|
1135 /*
|
|
|
1136 * if no "Server" and "Date" in header line,
|
|
|
1137 * then add the special empty headers
|
|
|
1138 */
|
|
|
1139
|
|
|
1140 if (r->upstream->headers_in.server == NULL) {
|
|
|
1141 h = ngx_list_push(&r->upstream->headers_in.headers);
|
|
|
1142 if (h == NULL) {
|
|
|
1143 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1144 }
|
|
|
1145
|
|
|
1146 h->hash = ngx_hash(ngx_hash(ngx_hash(ngx_hash(
|
|
|
1147 ngx_hash('s', 'e'), 'r'), 'v'), 'e'), 'r');
|
|
|
1148
|
|
|
1149 h->key.len = sizeof("Server") - 1;
|
|
|
1150 h->key.data = (u_char *) "Server";
|
|
|
1151 h->value.len = 0;
|
|
|
1152 h->value.data = NULL;
|
|
|
1153 h->lowcase_key = (u_char *) "server";
|
|
|
1154 }
|
|
|
1155
|
|
|
1156 if (r->upstream->headers_in.date == NULL) {
|
|
|
1157 h = ngx_list_push(&r->upstream->headers_in.headers);
|
|
|
1158 if (h == NULL) {
|
|
|
1159 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1160 }
|
|
|
1161
|
|
|
1162 h->hash = ngx_hash(ngx_hash(ngx_hash('d', 'a'), 't'), 'e');
|
|
|
1163
|
|
|
1164 h->key.len = sizeof("Date") - 1;
|
|
|
1165 h->key.data = (u_char *) "Date";
|
|
|
1166 h->value.len = 0;
|
|
|
1167 h->value.data = NULL;
|
|
|
1168 h->lowcase_key = (u_char *) "date";
|
|
|
1169 }
|
|
|
1170
|
|
58
|
1171 return NGX_OK;
|
|
|
1172 }
|
|
|
1173
|
|
70
|
1174 if (rc == NGX_AGAIN) {
|
|
|
1175 return NGX_AGAIN;
|
|
|
1176 }
|
|
|
1177
|
|
58
|
1178 /* there was error while a header line parsing */
|
|
|
1179
|
|
|
1180 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
168
|
1181 "upstream sent invalid header");
|
|
58
|
1182
|
|
|
1183 return NGX_HTTP_UPSTREAM_INVALID_HEADER;
|
|
|
1184 }
|
|
|
1185 }
|
|
|
1186
|
|
|
1187
|
|
|
1188 static void
|
|
|
1189 ngx_http_proxy_abort_request(ngx_http_request_t *r)
|
|
|
1190 {
|
|
|
1191 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1192 "abort http proxy request");
|
|
126
|
1193
|
|
58
|
1194 return;
|
|
|
1195 }
|
|
|
1196
|
|
|
1197
|
|
|
1198 static void
|
|
|
1199 ngx_http_proxy_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
126
|
1200 {
|
|
58
|
1201 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1202 "finalize http proxy request");
|
|
|
1203
|
|
|
1204 return;
|
|
|
1205 }
|
|
|
1206
|
|
|
1207
|
|
122
|
1208 static ngx_int_t
|
|
|
1209 ngx_http_proxy_host_variable(ngx_http_request_t *r,
|
|
|
1210 ngx_http_variable_value_t *v, uintptr_t data)
|
|
58
|
1211 {
|
|
|
1212 ngx_http_proxy_loc_conf_t *plcf;
|
|
|
1213
|
|
|
1214 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
|
1215
|
|
122
|
1216 v->len = plcf->host_header.len;
|
|
126
|
1217 v->valid = 1;
|
|
122
|
1218 v->no_cachable = 0;
|
|
|
1219 v->not_found = 0;
|
|
|
1220 v->data = plcf->host_header.data;
|
|
58
|
1221
|
|
122
|
1222 return NGX_OK;
|
|
58
|
1223 }
|
|
|
1224
|
|
|
1225
|
|
122
|
1226 static ngx_int_t
|
|
|
1227 ngx_http_proxy_port_variable(ngx_http_request_t *r,
|
|
|
1228 ngx_http_variable_value_t *v, uintptr_t data)
|
|
58
|
1229 {
|
|
|
1230 ngx_http_proxy_loc_conf_t *plcf;
|
|
|
1231
|
|
|
1232 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
|
1233
|
|
122
|
1234 v->len = plcf->port_text.len;
|
|
126
|
1235 v->valid = 1;
|
|
122
|
1236 v->no_cachable = 0;
|
|
|
1237 v->not_found = 0;
|
|
|
1238 v->data = plcf->port_text.data;
|
|
58
|
1239
|
|
122
|
1240 return NGX_OK;
|
|
58
|
1241 }
|
|
|
1242
|
|
|
1243
|
|
122
|
1244 static ngx_int_t
|
|
58
|
1245 ngx_http_proxy_add_x_forwarded_for_variable(ngx_http_request_t *r,
|
|
122
|
1246 ngx_http_variable_value_t *v, uintptr_t data)
|
|
58
|
1247 {
|
|
122
|
1248 u_char *p;
|
|
58
|
1249
|
|
126
|
1250 v->valid = 1;
|
|
122
|
1251 v->no_cachable = 0;
|
|
|
1252 v->not_found = 0;
|
|
58
|
1253
|
|
|
1254 if (r->headers_in.x_forwarded_for == NULL) {
|
|
122
|
1255 v->len = r->connection->addr_text.len;
|
|
|
1256 v->data = r->connection->addr_text.data;
|
|
|
1257 return NGX_OK;
|
|
58
|
1258 }
|
|
|
1259
|
|
122
|
1260 v->len = r->headers_in.x_forwarded_for->value.len
|
|
|
1261 + sizeof(", ") - 1 + r->connection->addr_text.len;
|
|
58
|
1262
|
|
122
|
1263 p = ngx_palloc(r->pool, v->len);
|
|
58
|
1264 if (p == NULL) {
|
|
122
|
1265 return NGX_ERROR;
|
|
58
|
1266 }
|
|
|
1267
|
|
122
|
1268 v->data = p;
|
|
58
|
1269
|
|
122
|
1270 p = ngx_copy(p, r->headers_in.x_forwarded_for->value.data,
|
|
|
1271 r->headers_in.x_forwarded_for->value.len);
|
|
58
|
1272
|
|
|
1273 *p++ = ','; *p++ = ' ';
|
|
|
1274
|
|
|
1275 ngx_memcpy(p, r->connection->addr_text.data, r->connection->addr_text.len);
|
|
|
1276
|
|
122
|
1277 return NGX_OK;
|
|
58
|
1278 }
|
|
|
1279
|
|
|
1280
|
|
|
1281 static ngx_int_t
|
|
126
|
1282 ngx_http_proxy_internal_body_length_variable(ngx_http_request_t *r,
|
|
|
1283 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
1284 {
|
|
|
1285 ngx_http_proxy_ctx_t *p;
|
|
|
1286
|
|
|
1287 p = ngx_http_get_module_ctx(r, ngx_http_proxy_module);
|
|
|
1288
|
|
|
1289 if (p == NULL) {
|
|
|
1290 v->not_found = 1;
|
|
|
1291 return NGX_OK;
|
|
|
1292 }
|
|
|
1293
|
|
|
1294 v->valid = 1;
|
|
|
1295 v->no_cachable = 0;
|
|
|
1296 v->not_found = 0;
|
|
|
1297
|
|
|
1298 v->data = ngx_palloc(r->connection->pool, NGX_SIZE_T_LEN);
|
|
|
1299
|
|
|
1300 if (v->data == NULL) {
|
|
|
1301 return NGX_ERROR;
|
|
|
1302 }
|
|
|
1303
|
|
|
1304 v->len = ngx_sprintf(v->data, "%uz", p->internal_body_length) - v->data;
|
|
|
1305
|
|
|
1306 return NGX_OK;
|
|
|
1307 }
|
|
|
1308
|
|
|
1309
|
|
|
1310 static ngx_int_t
|
|
58
|
1311 ngx_http_proxy_rewrite_redirect(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1312 size_t prefix)
|
|
|
1313 {
|
|
|
1314 ngx_int_t rc;
|
|
|
1315 ngx_uint_t i;
|
|
|
1316 ngx_http_proxy_loc_conf_t *plcf;
|
|
|
1317 ngx_http_proxy_redirect_t *pr;
|
|
|
1318
|
|
|
1319 plcf = ngx_http_get_module_loc_conf(r, ngx_http_proxy_module);
|
|
|
1320
|
|
|
1321 pr = plcf->redirects->elts;
|
|
|
1322
|
|
|
1323 if (pr == NULL) {
|
|
|
1324 return NGX_DECLINED;
|
|
|
1325 }
|
|
|
1326
|
|
|
1327 for (i = 0; i < plcf->redirects->nelts; i++) {
|
|
154
|
1328 rc = pr[i].handler(r, h, prefix, &pr[i]);
|
|
58
|
1329
|
|
|
1330 if (rc != NGX_DECLINED) {
|
|
|
1331 return rc;
|
|
|
1332 }
|
|
|
1333 }
|
|
|
1334
|
|
|
1335 return NGX_DECLINED;
|
|
|
1336 }
|
|
|
1337
|
|
|
1338
|
|
|
1339 static ngx_int_t
|
|
|
1340 ngx_http_proxy_rewrite_redirect_text(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1341 size_t prefix, ngx_http_proxy_redirect_t *pr)
|
|
|
1342 {
|
|
|
1343 size_t len;
|
|
|
1344 u_char *data, *p;
|
|
|
1345
|
|
|
1346 if (pr->redirect.len > h->value.len - prefix
|
|
|
1347 || ngx_rstrncmp(h->value.data + prefix, pr->redirect.data,
|
|
|
1348 pr->redirect.len) != 0)
|
|
|
1349 {
|
|
|
1350 return NGX_DECLINED;
|
|
|
1351 }
|
|
|
1352
|
|
|
1353 len = prefix + pr->replacement.text.len + h->value.len - pr->redirect.len;
|
|
|
1354
|
|
|
1355 data = ngx_palloc(r->pool, len);
|
|
|
1356 if (data == NULL) {
|
|
|
1357 return NGX_ERROR;
|
|
|
1358 }
|
|
|
1359
|
|
|
1360 p = data;
|
|
|
1361
|
|
122
|
1362 p = ngx_copy(p, h->value.data, prefix);
|
|
58
|
1363
|
|
202
|
1364 if (pr->replacement.text.len) {
|
|
|
1365 p = ngx_copy(p, pr->replacement.text.data, pr->replacement.text.len);
|
|
|
1366 }
|
|
58
|
1367
|
|
|
1368 ngx_memcpy(p, h->value.data + prefix + pr->redirect.len,
|
|
|
1369 h->value.len - pr->redirect.len - prefix);
|
|
|
1370
|
|
|
1371 h->value.len = len;
|
|
|
1372 h->value.data = data;
|
|
|
1373
|
|
|
1374 return NGX_OK;
|
|
|
1375 }
|
|
|
1376
|
|
|
1377
|
|
|
1378 static ngx_int_t
|
|
|
1379 ngx_http_proxy_rewrite_redirect_vars(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1380 size_t prefix, ngx_http_proxy_redirect_t *pr)
|
|
|
1381 {
|
|
|
1382 size_t len;
|
|
|
1383 u_char *data, *p;
|
|
|
1384 ngx_http_script_code_pt code;
|
|
|
1385 ngx_http_script_engine_t e;
|
|
|
1386 ngx_http_script_len_code_pt lcode;
|
|
|
1387
|
|
|
1388 if (pr->redirect.len > h->value.len - prefix
|
|
|
1389 || ngx_rstrncmp(h->value.data + prefix, pr->redirect.data,
|
|
|
1390 pr->redirect.len) != 0)
|
|
|
1391 {
|
|
|
1392 return NGX_DECLINED;
|
|
|
1393 }
|
|
|
1394
|
|
|
1395 ngx_memzero(&e, sizeof(ngx_http_script_engine_t));
|
|
|
1396
|
|
|
1397 e.ip = pr->replacement.vars.lengths;
|
|
|
1398 e.request = r;
|
|
|
1399
|
|
238
|
1400 len = prefix + h->value.len - pr->redirect.len;
|
|
|
1401
|
|
|
1402 while (*(uintptr_t *) e.ip) {
|
|
58
|
1403 lcode = *(ngx_http_script_len_code_pt *) e.ip;
|
|
238
|
1404 len += lcode(&e);
|
|
58
|
1405 }
|
|
|
1406
|
|
|
1407 data = ngx_palloc(r->pool, len);
|
|
|
1408 if (data == NULL) {
|
|
|
1409 return NGX_ERROR;
|
|
|
1410 }
|
|
|
1411
|
|
|
1412 p = data;
|
|
|
1413
|
|
122
|
1414 p = ngx_copy(p, h->value.data, prefix);
|
|
58
|
1415
|
|
|
1416 e.ip = pr->replacement.vars.values;
|
|
|
1417 e.pos = p;
|
|
|
1418
|
|
|
1419 while (*(uintptr_t *) e.ip) {
|
|
|
1420 code = *(ngx_http_script_code_pt *) e.ip;
|
|
|
1421 code(&e);
|
|
|
1422 }
|
|
|
1423
|
|
238
|
1424 ngx_memcpy(e.pos, h->value.data + prefix + pr->redirect.len,
|
|
|
1425 h->value.len - pr->redirect.len - prefix);
|
|
|
1426
|
|
58
|
1427 h->value.len = len;
|
|
|
1428 h->value.data = data;
|
|
|
1429
|
|
|
1430 return NGX_OK;
|
|
|
1431 }
|
|
|
1432
|
|
|
1433
|
|
|
1434 static ngx_int_t
|
|
|
1435 ngx_http_proxy_add_variables(ngx_conf_t *cf)
|
|
|
1436 {
|
|
|
1437 ngx_http_variable_t *var, *v;
|
|
|
1438
|
|
|
1439 for (v = ngx_http_proxy_vars; v->name.len; v++) {
|
|
|
1440 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
|
1441 if (var == NULL) {
|
|
|
1442 return NGX_ERROR;
|
|
|
1443 }
|
|
|
1444
|
|
186
|
1445 var->get_handler = v->get_handler;
|
|
58
|
1446 var->data = v->data;
|
|
|
1447 }
|
|
|
1448
|
|
|
1449 return NGX_OK;
|
|
|
1450 }
|
|
|
1451
|
|
|
1452
|
|
|
1453 static void *
|
|
|
1454 ngx_http_proxy_create_loc_conf(ngx_conf_t *cf)
|
|
|
1455 {
|
|
|
1456 ngx_http_proxy_loc_conf_t *conf;
|
|
|
1457
|
|
|
1458 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_proxy_loc_conf_t));
|
|
|
1459 if (conf == NULL) {
|
|
|
1460 return NGX_CONF_ERROR;
|
|
|
1461 }
|
|
|
1462
|
|
|
1463 /*
|
|
|
1464 * set by ngx_pcalloc():
|
|
|
1465 *
|
|
|
1466 * conf->upstream.bufs.num = 0;
|
|
|
1467 * conf->upstream.next_upstream = 0;
|
|
|
1468 * conf->upstream.temp_path = NULL;
|
|
198
|
1469 * conf->upstream.hide_headers_hash = { NULL, 0 };
|
|
|
1470 * conf->upstream.hide_headers = NULL;
|
|
|
1471 * conf->upstream.pass_headers = NULL;
|
|
58
|
1472 * conf->upstream.schema = { 0, NULL };
|
|
|
1473 * conf->upstream.uri = { 0, NULL };
|
|
|
1474 * conf->upstream.location = NULL;
|
|
|
1475 *
|
|
110
|
1476 * conf->method = NULL;
|
|
58
|
1477 * conf->headers_source = NULL;
|
|
|
1478 * conf->headers_set_len = NULL;
|
|
|
1479 * conf->headers_set = NULL;
|
|
|
1480 * conf->headers_set_hash = NULL;
|
|
126
|
1481 * conf->body_set_len = NULL;
|
|
|
1482 * conf->body_set = NULL;
|
|
|
1483 * conf->body_source = { 0, NULL };
|
|
58
|
1484 * conf->rewrite_locations = NULL;
|
|
|
1485 */
|
|
126
|
1486
|
|
130
|
1487 conf->upstream.buffering = NGX_CONF_UNSET;
|
|
178
|
1488 conf->upstream.ignore_client_abort = NGX_CONF_UNSET;
|
|
130
|
1489
|
|
58
|
1490 conf->upstream.connect_timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1491 conf->upstream.send_timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1492 conf->upstream.read_timeout = NGX_CONF_UNSET_MSEC;
|
|
|
1493
|
|
|
1494 conf->upstream.send_lowat = NGX_CONF_UNSET_SIZE;
|
|
130
|
1495 conf->upstream.buffer_size = NGX_CONF_UNSET_SIZE;
|
|
78
|
1496
|
|
|
1497 conf->upstream.busy_buffers_size_conf = NGX_CONF_UNSET_SIZE;
|
|
126
|
1498 conf->upstream.max_temp_file_size_conf = NGX_CONF_UNSET_SIZE;
|
|
78
|
1499 conf->upstream.temp_file_write_size_conf = NGX_CONF_UNSET_SIZE;
|
|
58
|
1500
|
|
110
|
1501 conf->upstream.max_fails = NGX_CONF_UNSET_UINT;
|
|
|
1502 conf->upstream.fail_timeout = NGX_CONF_UNSET;
|
|
|
1503
|
|
58
|
1504 conf->upstream.pass_request_headers = NGX_CONF_UNSET;
|
|
|
1505 conf->upstream.pass_request_body = NGX_CONF_UNSET;
|
|
110
|
1506
|
|
206
|
1507 conf->upstream.intercept_errors = NGX_CONF_UNSET;
|
|
58
|
1508
|
|
|
1509 /* "proxy_cyclic_temp_file" is disabled */
|
|
|
1510 conf->upstream.cyclic_temp_file = 0;
|
|
|
1511
|
|
|
1512 conf->redirect = NGX_CONF_UNSET;
|
|
198
|
1513 conf->upstream.change_buffering = 1;
|
|
58
|
1514
|
|
|
1515 return conf;
|
|
|
1516 }
|
|
|
1517
|
|
|
1518
|
|
|
1519 static char *
|
|
|
1520 ngx_http_proxy_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
1521 {
|
|
|
1522 ngx_http_proxy_loc_conf_t *prev = parent;
|
|
|
1523 ngx_http_proxy_loc_conf_t *conf = child;
|
|
|
1524
|
|
|
1525 u_char *p;
|
|
|
1526 size_t size;
|
|
|
1527 uintptr_t *code;
|
|
198
|
1528 ngx_str_t *header;
|
|
|
1529 ngx_uint_t i, j;
|
|
212
|
1530 ngx_peer_t *peer;
|
|
198
|
1531 ngx_array_t hide_headers;
|
|
|
1532 ngx_keyval_t *src, *s, *h;
|
|
|
1533 ngx_hash_key_t *hk;
|
|
|
1534 ngx_hash_init_t hash;
|
|
58
|
1535 ngx_http_proxy_redirect_t *pr;
|
|
|
1536 ngx_http_script_compile_t sc;
|
|
|
1537 ngx_http_script_copy_code_t *copy;
|
|
|
1538
|
|
130
|
1539 ngx_conf_merge_value(conf->upstream.buffering,
|
|
|
1540 prev->upstream.buffering, 1);
|
|
|
1541
|
|
178
|
1542 ngx_conf_merge_value(conf->upstream.ignore_client_abort,
|
|
|
1543 prev->upstream.ignore_client_abort, 0);
|
|
|
1544
|
|
58
|
1545 ngx_conf_merge_msec_value(conf->upstream.connect_timeout,
|
|
|
1546 prev->upstream.connect_timeout, 60000);
|
|
|
1547
|
|
|
1548 ngx_conf_merge_msec_value(conf->upstream.send_timeout,
|
|
|
1549 prev->upstream.send_timeout, 60000);
|
|
|
1550
|
|
|
1551 ngx_conf_merge_msec_value(conf->upstream.read_timeout,
|
|
|
1552 prev->upstream.read_timeout, 60000);
|
|
|
1553
|
|
|
1554 ngx_conf_merge_size_value(conf->upstream.send_lowat,
|
|
|
1555 prev->upstream.send_lowat, 0);
|
|
|
1556
|
|
130
|
1557 ngx_conf_merge_size_value(conf->upstream.buffer_size,
|
|
|
1558 prev->upstream.buffer_size,
|
|
58
|
1559 (size_t) ngx_pagesize);
|
|
|
1560
|
|
|
1561 ngx_conf_merge_bufs_value(conf->upstream.bufs, prev->upstream.bufs,
|
|
|
1562 8, ngx_pagesize);
|
|
|
1563
|
|
|
1564 if (conf->upstream.bufs.num < 2) {
|
|
126
|
1565 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
58
|
1566 "there must be at least 2 \"proxy_buffers\"");
|
|
|
1567 return NGX_CONF_ERROR;
|
|
|
1568 }
|
|
126
|
1569
|
|
58
|
1570
|
|
130
|
1571 size = conf->upstream.buffer_size;
|
|
126
|
1572 if (size < conf->upstream.bufs.size) {
|
|
58
|
1573 size = conf->upstream.bufs.size;
|
|
|
1574 }
|
|
|
1575
|
|
|
1576
|
|
78
|
1577 ngx_conf_merge_size_value(conf->upstream.busy_buffers_size_conf,
|
|
|
1578 prev->upstream.busy_buffers_size_conf,
|
|
58
|
1579 NGX_CONF_UNSET_SIZE);
|
|
|
1580
|
|
78
|
1581 if (conf->upstream.busy_buffers_size_conf == NGX_CONF_UNSET_SIZE) {
|
|
58
|
1582 conf->upstream.busy_buffers_size = 2 * size;
|
|
78
|
1583 } else {
|
|
|
1584 conf->upstream.busy_buffers_size =
|
|
|
1585 conf->upstream.busy_buffers_size_conf;
|
|
|
1586 }
|
|
126
|
1587
|
|
78
|
1588 if (conf->upstream.busy_buffers_size < size) {
|
|
58
|
1589 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1590 "\"proxy_busy_buffers_size\" must be equal or bigger than "
|
|
|
1591 "maximum of the value of \"proxy_header_buffer_size\" and "
|
|
|
1592 "one of the \"proxy_buffers\"");
|
|
|
1593
|
|
|
1594 return NGX_CONF_ERROR;
|
|
78
|
1595 }
|
|
58
|
1596
|
|
78
|
1597 if (conf->upstream.busy_buffers_size
|
|
|
1598 > (conf->upstream.bufs.num - 1) * conf->upstream.bufs.size)
|
|
58
|
1599 {
|
|
|
1600 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1601 "\"proxy_busy_buffers_size\" must be less than "
|
|
|
1602 "the size of all \"proxy_buffers\" minus one buffer");
|
|
|
1603
|
|
|
1604 return NGX_CONF_ERROR;
|
|
|
1605 }
|
|
78
|
1606
|
|
58
|
1607
|
|
78
|
1608 ngx_conf_merge_size_value(conf->upstream.temp_file_write_size_conf,
|
|
|
1609 prev->upstream.temp_file_write_size_conf,
|
|
58
|
1610 NGX_CONF_UNSET_SIZE);
|
|
|
1611
|
|
78
|
1612 if (conf->upstream.temp_file_write_size_conf == NGX_CONF_UNSET_SIZE) {
|
|
58
|
1613 conf->upstream.temp_file_write_size = 2 * size;
|
|
78
|
1614 } else {
|
|
|
1615 conf->upstream.temp_file_write_size =
|
|
|
1616 conf->upstream.temp_file_write_size_conf;
|
|
|
1617 }
|
|
126
|
1618
|
|
78
|
1619 if (conf->upstream.temp_file_write_size < size) {
|
|
58
|
1620 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
1621 "\"proxy_temp_file_write_size\" must be equal or bigger than "
|
|
|
1622 "maximum of the value of \"proxy_header_buffer_size\" and "
|
|
|
1623 "one of the \"proxy_buffers\"");
|
|
|
1624
|
|
|
1625 return NGX_CONF_ERROR;
|
|
|
1626 }
|
|
|
1627
|
|
78
|
1628 ngx_conf_merge_size_value(conf->upstream.max_temp_file_size_conf,
|
|
|
1629 prev->upstream.max_temp_file_size_conf,
|
|
58
|
1630 NGX_CONF_UNSET_SIZE);
|
|
|
1631
|
|
78
|
1632 if (conf->upstream.max_temp_file_size_conf == NGX_CONF_UNSET_SIZE) {
|
|
58
|
1633 conf->upstream.max_temp_file_size = 1024 * 1024 * 1024;
|
|
78
|
1634 } else {
|
|
|
1635 conf->upstream.max_temp_file_size =
|
|
|
1636 conf->upstream.max_temp_file_size_conf;
|
|
|
1637 }
|
|
58
|
1638
|
|
78
|
1639 if (conf->upstream.max_temp_file_size != 0
|
|
|
1640 && conf->upstream.max_temp_file_size < size)
|
|
58
|
1641 {
|
|
|
1642 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
110
|
1643 "\"proxy_max_temp_file_size\" must be equal to zero to disable "
|
|
58
|
1644 "the temporary files usage or must be equal or bigger than "
|
|
110
|
1645 "maximum of the value of \"proxy_header_buffer_size\" and "
|
|
|
1646 "one of the \"proxy_buffers\"");
|
|
58
|
1647
|
|
|
1648 return NGX_CONF_ERROR;
|
|
|
1649 }
|
|
|
1650
|
|
78
|
1651
|
|
58
|
1652 ngx_conf_merge_bitmask_value(conf->upstream.next_upstream,
|
|
|
1653 prev->upstream.next_upstream,
|
|
|
1654 (NGX_CONF_BITMASK_SET
|
|
|
1655 |NGX_HTTP_UPSTREAM_FT_ERROR
|
|
|
1656 |NGX_HTTP_UPSTREAM_FT_TIMEOUT));
|
|
|
1657
|
|
214
|
1658 if (conf->upstream.next_upstream & NGX_HTTP_UPSTREAM_FT_OFF) {
|
|
|
1659 conf->upstream.next_upstream = NGX_CONF_BITMASK_SET
|
|
|
1660 |NGX_HTTP_UPSTREAM_FT_OFF;
|
|
|
1661 }
|
|
|
1662
|
|
212
|
1663 ngx_conf_merge_uint_value(conf->upstream.max_fails,
|
|
110
|
1664 prev->upstream.max_fails, 1);
|
|
|
1665
|
|
|
1666 ngx_conf_merge_sec_value(conf->upstream.fail_timeout,
|
|
|
1667 prev->upstream.fail_timeout, 10);
|
|
|
1668
|
|
212
|
1669 if (conf->upstream_peers) {
|
|
|
1670 peer = conf->upstream_peers->peers->peer;
|
|
200
|
1671 for (i = 0; i < conf->upstream_peers->peers->number; i++) {
|
|
212
|
1672 ngx_conf_init_uint_value(peer[i].weight, 1);
|
|
|
1673 peer[i].current_weight = peer[i].weight;
|
|
|
1674 ngx_conf_init_uint_value(peer[i].max_fails,
|
|
|
1675 conf->upstream.max_fails);
|
|
|
1676 ngx_conf_init_value(peer[i].fail_timeout,
|
|
|
1677 conf->upstream.fail_timeout);
|
|
110
|
1678 }
|
|
|
1679 }
|
|
|
1680
|
|
58
|
1681 ngx_conf_merge_path_value(conf->upstream.temp_path,
|
|
|
1682 prev->upstream.temp_path,
|
|
|
1683 NGX_HTTP_PROXY_TEMP_PATH, 1, 2, 0,
|
|
|
1684 ngx_garbage_collector_temp_handler, cf);
|
|
|
1685
|
|
110
|
1686 if (conf->method.len == 0) {
|
|
|
1687 conf->method = prev->method;
|
|
|
1688
|
|
|
1689 } else {
|
|
|
1690 conf->method.data[conf->method.len] = ' ';
|
|
|
1691 conf->method.len++;
|
|
58
|
1692 }
|
|
|
1693
|
|
|
1694 ngx_conf_merge_value(conf->upstream.pass_request_headers,
|
|
|
1695 prev->upstream.pass_request_headers, 1);
|
|
|
1696 ngx_conf_merge_value(conf->upstream.pass_request_body,
|
|
|
1697 prev->upstream.pass_request_body, 1);
|
|
|
1698
|
|
206
|
1699 ngx_conf_merge_value(conf->upstream.intercept_errors,
|
|
|
1700 prev->upstream.intercept_errors, 0);
|
|
58
|
1701
|
|
|
1702 ngx_conf_merge_value(conf->redirect, prev->redirect, 1);
|
|
|
1703
|
|
|
1704 if (conf->redirect) {
|
|
|
1705
|
|
|
1706 if (conf->redirects == NULL) {
|
|
|
1707 conf->redirects = prev->redirects;
|
|
|
1708 }
|
|
|
1709
|
|
|
1710 if (conf->redirects == NULL && conf->upstream.url.data) {
|
|
|
1711
|
|
|
1712 conf->redirects = ngx_array_create(cf->pool, 1,
|
|
|
1713 sizeof(ngx_http_proxy_redirect_t));
|
|
|
1714 if (conf->redirects == NULL) {
|
|
|
1715 return NGX_CONF_ERROR;
|
|
|
1716 }
|
|
|
1717
|
|
|
1718 pr = ngx_array_push(conf->redirects);
|
|
|
1719 if (pr == NULL) {
|
|
|
1720 return NGX_CONF_ERROR;
|
|
|
1721 }
|
|
|
1722
|
|
|
1723 pr->handler = ngx_http_proxy_rewrite_redirect_text;
|
|
|
1724 pr->redirect = conf->upstream.url;
|
|
202
|
1725
|
|
|
1726 if (conf->upstream.uri.len) {
|
|
|
1727 pr->replacement.text = conf->upstream.location;
|
|
|
1728
|
|
|
1729 } else {
|
|
|
1730 pr->replacement.text.len = 0;
|
|
|
1731 pr->replacement.text.data = NULL;
|
|
|
1732 }
|
|
58
|
1733 }
|
|
|
1734 }
|
|
|
1735
|
|
198
|
1736 if (conf->upstream.hide_headers == NULL
|
|
|
1737 && conf->upstream.pass_headers == NULL)
|
|
|
1738 {
|
|
|
1739 conf->upstream.hide_headers = prev->upstream.hide_headers;
|
|
|
1740 conf->upstream.pass_headers = prev->upstream.pass_headers;
|
|
|
1741 conf->upstream.hide_headers_hash = prev->upstream.hide_headers_hash;
|
|
|
1742
|
|
|
1743 if (conf->upstream.hide_headers_hash.buckets) {
|
|
|
1744 goto peers;
|
|
|
1745 }
|
|
|
1746
|
|
|
1747 } else {
|
|
|
1748 if (conf->upstream.hide_headers == NULL) {
|
|
|
1749 conf->upstream.hide_headers = prev->upstream.hide_headers;
|
|
|
1750 }
|
|
|
1751
|
|
|
1752 if (conf->upstream.pass_headers == NULL) {
|
|
|
1753 conf->upstream.pass_headers = prev->upstream.pass_headers;
|
|
|
1754 }
|
|
|
1755 }
|
|
|
1756
|
|
|
1757 if (ngx_array_init(&hide_headers, cf->temp_pool, 4, sizeof(ngx_hash_key_t))
|
|
|
1758 != NGX_OK)
|
|
|
1759 {
|
|
|
1760 return NGX_CONF_ERROR;
|
|
|
1761 }
|
|
|
1762
|
|
|
1763 for (header = ngx_http_proxy_hide_headers; header->len; header++) {
|
|
|
1764 hk = ngx_array_push(&hide_headers);
|
|
|
1765 if (hk == NULL) {
|
|
|
1766 return NGX_CONF_ERROR;
|
|
|
1767 }
|
|
|
1768
|
|
|
1769 hk->key = *header;
|
|
|
1770 hk->key_hash = ngx_hash_key_lc(header->data, header->len);
|
|
|
1771 hk->value = (void *) 1;
|
|
|
1772 }
|
|
|
1773
|
|
|
1774 if (conf->upstream.hide_headers) {
|
|
|
1775
|
|
|
1776 header = conf->upstream.hide_headers->elts;
|
|
|
1777
|
|
|
1778 for (i = 0; i < conf->upstream.hide_headers->nelts; i++) {
|
|
|
1779
|
|
|
1780 hk = hide_headers.elts;
|
|
|
1781
|
|
|
1782 for (j = 0; j < hide_headers.nelts; j++) {
|
|
|
1783 if (ngx_strcasecmp(header[i].data, hk[j].key.data) == 0) {
|
|
|
1784 goto exist;
|
|
|
1785 }
|
|
|
1786 }
|
|
|
1787
|
|
|
1788 hk = ngx_array_push(&hide_headers);
|
|
|
1789 if (hk == NULL) {
|
|
|
1790 return NGX_CONF_ERROR;
|
|
|
1791 }
|
|
|
1792
|
|
|
1793 hk->key = header[i];
|
|
|
1794 hk->key_hash = ngx_hash_key_lc(header[i].data, header[i].len);
|
|
|
1795 hk->value = (void *) 1;
|
|
|
1796
|
|
|
1797 exist:
|
|
|
1798
|
|
|
1799 continue;
|
|
|
1800 }
|
|
|
1801 }
|
|
|
1802
|
|
|
1803 if (conf->upstream.pass_headers) {
|
|
|
1804
|
|
|
1805 hk = hide_headers.elts;
|
|
|
1806 header = conf->upstream.pass_headers->elts;
|
|
|
1807
|
|
|
1808 for (i = 0; i < conf->upstream.pass_headers->nelts; i++) {
|
|
|
1809 for (j = 0; j < hide_headers.nelts; j++) {
|
|
|
1810
|
|
|
1811 if (hk[j].key.data == NULL) {
|
|
|
1812 continue;
|
|
|
1813 }
|
|
|
1814
|
|
|
1815 if (ngx_strcasecmp(header[i].data, hk[j].key.data) == 0) {
|
|
|
1816 hk[j].key.data = NULL;
|
|
|
1817 break;
|
|
|
1818 }
|
|
|
1819 }
|
|
|
1820 }
|
|
|
1821 }
|
|
|
1822
|
|
|
1823 hash.hash = &conf->upstream.hide_headers_hash;
|
|
|
1824 hash.key = ngx_hash_key_lc;
|
|
|
1825 hash.max_size = 512;
|
|
|
1826 hash.bucket_size = ngx_cacheline_size;
|
|
|
1827 hash.name = "proxy_hide_headers_hash";
|
|
|
1828 hash.pool = cf->pool;
|
|
|
1829 hash.temp_pool = NULL;
|
|
|
1830
|
|
|
1831 if (ngx_hash_init(&hash, hide_headers.elts, hide_headers.nelts) != NGX_OK) {
|
|
|
1832 return NGX_CONF_ERROR;
|
|
|
1833 }
|
|
|
1834
|
|
|
1835 peers:
|
|
58
|
1836
|
|
200
|
1837 if (conf->upstream_peers == NULL) {
|
|
|
1838 conf->upstream_peers = prev->upstream_peers;
|
|
178
|
1839
|
|
|
1840 conf->host_header = prev->host_header;
|
|
|
1841 conf->port_text = prev->port_text;
|
|
|
1842 conf->upstream.schema = prev->upstream.schema;
|
|
58
|
1843 }
|
|
|
1844
|
|
126
|
1845
|
|
|
1846 if (conf->body_source.data == NULL) {
|
|
|
1847 conf->body_source = prev->body_source;
|
|
|
1848 conf->body_set_len = prev->body_set_len;
|
|
|
1849 conf->body_set = prev->body_set;
|
|
|
1850 }
|
|
|
1851
|
|
128
|
1852 if (conf->body_source.data && conf->body_set_len == NULL) {
|
|
126
|
1853
|
|
|
1854 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
|
1855
|
|
|
1856 sc.cf = cf;
|
|
|
1857 sc.source = &conf->body_source;
|
|
|
1858 sc.flushes = &conf->flushes;
|
|
|
1859 sc.lengths = &conf->body_set_len;
|
|
|
1860 sc.values = &conf->body_set;
|
|
|
1861 sc.complete_lengths = 1;
|
|
|
1862 sc.complete_values = 1;
|
|
|
1863
|
|
|
1864 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
|
1865 return NGX_CONF_ERROR;
|
|
|
1866 }
|
|
|
1867
|
|
|
1868 if (conf->headers_source == NULL) {
|
|
|
1869 conf->headers_source = ngx_array_create(cf->pool, 4,
|
|
198
|
1870 sizeof(ngx_keyval_t));
|
|
126
|
1871 if (conf->headers_source == NULL) {
|
|
|
1872 return NGX_CONF_ERROR;
|
|
|
1873 }
|
|
|
1874 }
|
|
|
1875
|
|
|
1876 s = ngx_array_push(conf->headers_source);
|
|
|
1877 if (s == NULL) {
|
|
|
1878 return NGX_CONF_ERROR;
|
|
|
1879 }
|
|
|
1880
|
|
|
1881 s->key.len = sizeof("Content-Length") - 1;
|
|
|
1882 s->key.data = (u_char *) "Content-Length";
|
|
|
1883 s->value.len = sizeof("$proxy_internal_body_length") - 1;
|
|
|
1884 s->value.data = (u_char *) "$proxy_internal_body_length";
|
|
|
1885 }
|
|
|
1886
|
|
|
1887
|
|
58
|
1888 if (conf->headers_source == NULL) {
|
|
122
|
1889 conf->flushes = prev->flushes;
|
|
58
|
1890 conf->headers_set_len = prev->headers_set_len;
|
|
|
1891 conf->headers_set = prev->headers_set;
|
|
|
1892 conf->headers_set_hash = prev->headers_set_hash;
|
|
122
|
1893 conf->headers_source = prev->headers_source;
|
|
58
|
1894 }
|
|
|
1895
|
|
198
|
1896 if (conf->headers_set_hash.buckets) {
|
|
58
|
1897 return NGX_CONF_OK;
|
|
|
1898 }
|
|
|
1899
|
|
|
1900
|
|
198
|
1901 conf->headers_names = ngx_array_create(cf->pool, 4, sizeof(ngx_hash_key_t));
|
|
58
|
1902 if (conf->headers_names == NULL) {
|
|
|
1903 return NGX_CONF_ERROR;
|
|
|
1904 }
|
|
|
1905
|
|
|
1906 if (conf->headers_source == NULL) {
|
|
|
1907 conf->headers_source = ngx_array_create(cf->pool, 4,
|
|
198
|
1908 sizeof(ngx_keyval_t));
|
|
58
|
1909 if (conf->headers_source == NULL) {
|
|
|
1910 return NGX_CONF_ERROR;
|
|
|
1911 }
|
|
|
1912 }
|
|
|
1913
|
|
|
1914 conf->headers_set_len = ngx_array_create(cf->pool, 64, 1);
|
|
|
1915 if (conf->headers_set_len == NULL) {
|
|
|
1916 return NGX_CONF_ERROR;
|
|
|
1917 }
|
|
|
1918
|
|
|
1919 conf->headers_set = ngx_array_create(cf->pool, 512, 1);
|
|
|
1920 if (conf->headers_set == NULL) {
|
|
|
1921 return NGX_CONF_ERROR;
|
|
|
1922 }
|
|
|
1923
|
|
|
1924
|
|
|
1925 src = conf->headers_source->elts;
|
|
|
1926
|
|
|
1927 for (h = ngx_http_proxy_headers; h->key.len; h++) {
|
|
|
1928
|
|
|
1929 for (i = 0; i < conf->headers_source->nelts; i++) {
|
|
|
1930 if (ngx_strcasecmp(h->key.data, src[i].key.data) == 0) {
|
|
|
1931 goto next;
|
|
|
1932 }
|
|
|
1933 }
|
|
|
1934
|
|
|
1935 s = ngx_array_push(conf->headers_source);
|
|
|
1936 if (s == NULL) {
|
|
|
1937 return NGX_CONF_ERROR;
|
|
|
1938 }
|
|
|
1939
|
|
|
1940 *s = *h;
|
|
|
1941
|
|
66
|
1942 src = conf->headers_source->elts;
|
|
|
1943
|
|
58
|
1944 next:
|
|
|
1945
|
|
|
1946 continue;
|
|
|
1947 }
|
|
|
1948
|
|
126
|
1949
|
|
|
1950 src = conf->headers_source->elts;
|
|
58
|
1951 for (i = 0; i < conf->headers_source->nelts; i++) {
|
|
|
1952
|
|
198
|
1953 hk = ngx_array_push(conf->headers_names);
|
|
|
1954 if (hk == NULL) {
|
|
58
|
1955 return NGX_CONF_ERROR;
|
|
|
1956 }
|
|
|
1957
|
|
198
|
1958 hk->key = src[i].key;
|
|
|
1959 hk->key_hash = ngx_hash_key_lc(src[i].key.data, src[i].key.len);
|
|
|
1960 hk->value = (void *) 1;
|
|
58
|
1961
|
|
68
|
1962 if (src[i].value.len == 0) {
|
|
|
1963 continue;
|
|
|
1964 }
|
|
|
1965
|
|
58
|
1966 if (ngx_http_script_variables_count(&src[i].value) == 0) {
|
|
|
1967 copy = ngx_array_push_n(conf->headers_set_len,
|
|
|
1968 sizeof(ngx_http_script_copy_code_t));
|
|
|
1969 if (copy == NULL) {
|
|
|
1970 return NGX_CONF_ERROR;
|
|
|
1971 }
|
|
|
1972
|
|
|
1973 copy->code = (ngx_http_script_code_pt)
|
|
|
1974 ngx_http_script_copy_len_code;
|
|
|
1975 copy->len = src[i].key.len + sizeof(": ") - 1
|
|
|
1976 + src[i].value.len + sizeof(CRLF) - 1;
|
|
|
1977
|
|
|
1978
|
|
|
1979 size = (sizeof(ngx_http_script_copy_code_t)
|
|
|
1980 + src[i].key.len + sizeof(": ") - 1
|
|
|
1981 + src[i].value.len + sizeof(CRLF) - 1
|
|
|
1982 + sizeof(uintptr_t) - 1)
|
|
|
1983 & ~(sizeof(uintptr_t) - 1);
|
|
|
1984
|
|
|
1985 copy = ngx_array_push_n(conf->headers_set, size);
|
|
|
1986 if (copy == NULL) {
|
|
|
1987 return NGX_CONF_ERROR;
|
|
|
1988 }
|
|
|
1989
|
|
|
1990 copy->code = ngx_http_script_copy_code;
|
|
|
1991 copy->len = src[i].key.len + sizeof(": ") - 1
|
|
|
1992 + src[i].value.len + sizeof(CRLF) - 1;
|
|
|
1993
|
|
|
1994 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
|
1995
|
|
|
1996 p = ngx_cpymem(p, src[i].key.data, src[i].key.len);
|
|
|
1997 *p++ = ':'; *p++ = ' ';
|
|
|
1998 p = ngx_cpymem(p, src[i].value.data, src[i].value.len);
|
|
|
1999 *p++ = CR; *p = LF;
|
|
|
2000
|
|
|
2001 } else {
|
|
|
2002 copy = ngx_array_push_n(conf->headers_set_len,
|
|
|
2003 sizeof(ngx_http_script_copy_code_t));
|
|
|
2004 if (copy == NULL) {
|
|
|
2005 return NGX_CONF_ERROR;
|
|
|
2006 }
|
|
|
2007
|
|
|
2008 copy->code = (ngx_http_script_code_pt)
|
|
|
2009 ngx_http_script_copy_len_code;
|
|
|
2010 copy->len = src[i].key.len + sizeof(": ") - 1;
|
|
|
2011
|
|
|
2012
|
|
|
2013 size = (sizeof(ngx_http_script_copy_code_t)
|
|
|
2014 + src[i].key.len + sizeof(": ") - 1 + sizeof(uintptr_t) - 1)
|
|
|
2015 & ~(sizeof(uintptr_t) - 1);
|
|
|
2016
|
|
|
2017 copy = ngx_array_push_n(conf->headers_set, size);
|
|
|
2018 if (copy == NULL) {
|
|
|
2019 return NGX_CONF_ERROR;
|
|
|
2020 }
|
|
|
2021
|
|
|
2022 copy->code = ngx_http_script_copy_code;
|
|
|
2023 copy->len = src[i].key.len + sizeof(": ") - 1;
|
|
|
2024
|
|
|
2025 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
|
2026 p = ngx_cpymem(p, src[i].key.data, src[i].key.len);
|
|
|
2027 *p++ = ':'; *p = ' ';
|
|
|
2028
|
|
|
2029
|
|
|
2030 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
|
2031
|
|
|
2032 sc.cf = cf;
|
|
|
2033 sc.source = &src[i].value;
|
|
122
|
2034 sc.flushes = &conf->flushes;
|
|
58
|
2035 sc.lengths = &conf->headers_set_len;
|
|
|
2036 sc.values = &conf->headers_set;
|
|
|
2037
|
|
|
2038 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
|
2039 return NGX_CONF_ERROR;
|
|
|
2040 }
|
|
|
2041
|
|
|
2042
|
|
|
2043 copy = ngx_array_push_n(conf->headers_set_len,
|
|
|
2044 sizeof(ngx_http_script_copy_code_t));
|
|
|
2045 if (copy == NULL) {
|
|
|
2046 return NGX_CONF_ERROR;
|
|
|
2047 }
|
|
|
2048
|
|
|
2049 copy->code = (ngx_http_script_code_pt)
|
|
|
2050 ngx_http_script_copy_len_code;
|
|
|
2051 copy->len = sizeof(CRLF) - 1;
|
|
|
2052
|
|
|
2053
|
|
|
2054 size = (sizeof(ngx_http_script_copy_code_t)
|
|
|
2055 + sizeof(CRLF) - 1 + sizeof(uintptr_t) - 1)
|
|
|
2056 & ~(sizeof(uintptr_t) - 1);
|
|
|
2057
|
|
|
2058 copy = ngx_array_push_n(conf->headers_set, size);
|
|
|
2059 if (copy == NULL) {
|
|
|
2060 return NGX_CONF_ERROR;
|
|
|
2061 }
|
|
|
2062
|
|
|
2063 copy->code = ngx_http_script_copy_code;
|
|
|
2064 copy->len = sizeof(CRLF) - 1;
|
|
|
2065
|
|
|
2066 p = (u_char *) copy + sizeof(ngx_http_script_copy_code_t);
|
|
|
2067 *p++ = CR; *p = LF;
|
|
|
2068 }
|
|
|
2069
|
|
|
2070 code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t));
|
|
|
2071 if (code == NULL) {
|
|
|
2072 return NGX_CONF_ERROR;
|
|
|
2073 }
|
|
|
2074
|
|
|
2075 *code = (uintptr_t) NULL;
|
|
|
2076
|
|
|
2077 code = ngx_array_push_n(conf->headers_set, sizeof(uintptr_t));
|
|
|
2078 if (code == NULL) {
|
|
|
2079 return NGX_CONF_ERROR;
|
|
|
2080 }
|
|
|
2081
|
|
|
2082 *code = (uintptr_t) NULL;
|
|
|
2083 }
|
|
|
2084
|
|
|
2085 code = ngx_array_push_n(conf->headers_set_len, sizeof(uintptr_t));
|
|
|
2086 if (code == NULL) {
|
|
|
2087 return NGX_CONF_ERROR;
|
|
|
2088 }
|
|
|
2089
|
|
|
2090 *code = (uintptr_t) NULL;
|
|
|
2091
|
|
|
2092
|
|
198
|
2093 hash.hash = &conf->headers_set_hash;
|
|
|
2094 hash.key = ngx_hash_key_lc;
|
|
|
2095 hash.max_size = 512;
|
|
|
2096 hash.bucket_size = ngx_cacheline_size;
|
|
|
2097 hash.name = "proxy_set_header_hash";
|
|
|
2098 hash.pool = cf->pool;
|
|
|
2099 hash.temp_pool = NULL;
|
|
|
2100
|
|
|
2101 if (ngx_hash_init(&hash, conf->headers_names->elts,
|
|
|
2102 conf->headers_names->nelts)
|
|
|
2103 != NGX_OK)
|
|
|
2104 {
|
|
|
2105 return NGX_CONF_ERROR;
|
|
|
2106 }
|
|
|
2107
|
|
|
2108
|
|
|
2109 #if 0
|
|
138
|
2110 conf->headers_set_hash = ngx_pcalloc(cf->pool, sizeof(ngx_hash0_t));
|
|
58
|
2111 if (conf->headers_set_hash == NULL) {
|
|
|
2112 return NGX_CONF_ERROR;
|
|
|
2113 }
|
|
|
2114
|
|
|
2115 conf->headers_set_hash->max_size = 100;
|
|
|
2116 conf->headers_set_hash->bucket_limit = 1;
|
|
|
2117 conf->headers_set_hash->bucket_size = sizeof(ngx_str_t);
|
|
|
2118 conf->headers_set_hash->name = "proxy_headers";
|
|
|
2119
|
|
138
|
2120 if (ngx_hash0_init(conf->headers_set_hash, cf->pool,
|
|
|
2121 conf->headers_names->elts, conf->headers_names->nelts)
|
|
|
2122 != NGX_OK)
|
|
58
|
2123 {
|
|
|
2124 return NGX_CONF_ERROR;
|
|
|
2125 }
|
|
|
2126
|
|
|
2127 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, cf->log, 0,
|
|
|
2128 "proxy_headers hash size: %ui, "
|
|
|
2129 "max buckets per entry: %ui",
|
|
|
2130 conf->headers_set_hash->hash_size,
|
|
|
2131 conf->headers_set_hash->min_buckets);
|
|
198
|
2132 #endif
|
|
58
|
2133
|
|
|
2134 return NGX_CONF_OK;
|
|
|
2135 }
|
|
|
2136
|
|
|
2137
|
|
|
2138 static char *
|
|
|
2139 ngx_http_proxy_pass(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
2140 {
|
|
|
2141 ngx_http_proxy_loc_conf_t *plcf = conf;
|
|
|
2142
|
|
126
|
2143 size_t add;
|
|
142
|
2144 u_short port;
|
|
58
|
2145 ngx_str_t *value, *url;
|
|
200
|
2146 ngx_url_t u;
|
|
58
|
2147 ngx_http_core_loc_conf_t *clcf;
|
|
126
|
2148 #if (NGX_HTTP_SSL)
|
|
|
2149 ngx_pool_cleanup_t *cln;
|
|
|
2150 #endif
|
|
58
|
2151
|
|
104
|
2152 if (plcf->upstream.schema.len) {
|
|
|
2153 return "is duplicate";
|
|
|
2154 }
|
|
|
2155
|
|
58
|
2156 value = cf->args->elts;
|
|
|
2157
|
|
|
2158 url = &value[1];
|
|
|
2159
|
|
126
|
2160 if (ngx_strncasecmp(url->data, "http://", 7) == 0) {
|
|
|
2161 add = 7;
|
|
140
|
2162 port = 80;
|
|
126
|
2163
|
|
|
2164 } else if (ngx_strncasecmp(url->data, "https://", 8) == 0) {
|
|
|
2165
|
|
|
2166 #if (NGX_HTTP_SSL)
|
|
|
2167
|
|
|
2168 add = 8;
|
|
140
|
2169 port = 443;
|
|
126
|
2170
|
|
|
2171 plcf->upstream.ssl = ngx_pcalloc(cf->pool, sizeof(ngx_ssl_t));
|
|
|
2172 if (plcf->upstream.ssl == NULL) {
|
|
|
2173 return NGX_CONF_ERROR;
|
|
|
2174 }
|
|
|
2175
|
|
|
2176 plcf->upstream.ssl->log = cf->log;
|
|
|
2177
|
|
|
2178 if (ngx_ssl_create(plcf->upstream.ssl,
|
|
|
2179 NGX_SSL_SSLv2|NGX_SSL_SSLv3|NGX_SSL_TLSv1)
|
|
|
2180 != NGX_OK)
|
|
|
2181 {
|
|
|
2182 return NGX_CONF_ERROR;
|
|
|
2183 }
|
|
|
2184
|
|
|
2185 cln = ngx_pool_cleanup_add(cf->pool, 0);
|
|
|
2186 if (cln == NULL) {
|
|
|
2187 return NGX_CONF_ERROR;
|
|
|
2188 }
|
|
|
2189
|
|
|
2190 cln->handler = ngx_ssl_cleanup_ctx;
|
|
|
2191 cln->data = plcf->upstream.ssl;
|
|
|
2192
|
|
|
2193 #else
|
|
|
2194 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
2195 "https protocol requires SSL support");
|
|
|
2196 return NGX_CONF_ERROR;
|
|
|
2197 #endif
|
|
|
2198
|
|
|
2199 } else {
|
|
58
|
2200 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid URL prefix");
|
|
|
2201 return NGX_CONF_ERROR;
|
|
|
2202 }
|
|
|
2203
|
|
200
|
2204 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
|
2205
|
|
|
2206 u.url.len = url->len - add;
|
|
|
2207 u.url.data = url->data + add;
|
|
|
2208 u.default_portn = port;
|
|
|
2209 u.uri_part = 1;
|
|
|
2210 u.upstream = 1;
|
|
|
2211
|
|
|
2212 plcf->upstream_peers = ngx_http_upstream_add(cf, &u);
|
|
|
2213 if (plcf->upstream_peers == NULL) {
|
|
58
|
2214 return NGX_CONF_ERROR;
|
|
|
2215 }
|
|
|
2216
|
|
200
|
2217 plcf->host_header = u.host_header;
|
|
|
2218 plcf->port_text = u.port;
|
|
|
2219 plcf->upstream.uri = u.uri;
|
|
|
2220
|
|
140
|
2221 plcf->upstream.schema.len = add;
|
|
|
2222 plcf->upstream.schema.data = url->data;
|
|
58
|
2223
|
|
|
2224 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module);
|
|
|
2225
|
|
|
2226 clcf->handler = ngx_http_proxy_handler;
|
|
|
2227
|
|
122
|
2228 plcf->upstream.location = clcf->name;
|
|
104
|
2229
|
|
58
|
2230 #if (NGX_PCRE)
|
|
104
|
2231
|
|
178
|
2232 if (clcf->regex || clcf->noname) {
|
|
122
|
2233 if (plcf->upstream.uri.len) {
|
|
|
2234 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
2235 "\"proxy_pass\" may not have URI part in "
|
|
178
|
2236 "location given by regular expression or "
|
|
|
2237 "inside the \"if\" statement");
|
|
122
|
2238 return NGX_CONF_ERROR;
|
|
|
2239 }
|
|
|
2240
|
|
|
2241 plcf->upstream.location.len = 0;
|
|
104
|
2242 }
|
|
|
2243
|
|
58
|
2244 #endif
|
|
|
2245
|
|
|
2246 plcf->upstream.url = *url;
|
|
|
2247
|
|
|
2248 if (clcf->name.data[clcf->name.len - 1] == '/') {
|
|
|
2249 clcf->auto_redirect = 1;
|
|
|
2250 }
|
|
|
2251
|
|
|
2252 return NGX_CONF_OK;
|
|
|
2253 }
|
|
|
2254
|
|
|
2255
|
|
|
2256 static char *
|
|
|
2257 ngx_http_proxy_redirect(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
2258 {
|
|
|
2259 ngx_http_proxy_loc_conf_t *plcf = conf;
|
|
|
2260
|
|
|
2261 ngx_str_t *value;
|
|
|
2262 ngx_array_t *vars_lengths, *vars_values;
|
|
|
2263 ngx_http_script_compile_t sc;
|
|
|
2264 ngx_http_proxy_redirect_t *pr;
|
|
|
2265
|
|
|
2266 if (plcf->redirect == 0) {
|
|
|
2267 return NGX_CONF_OK;
|
|
|
2268 }
|
|
|
2269
|
|
|
2270 value = cf->args->elts;
|
|
|
2271
|
|
|
2272 if (ngx_strcmp(value[1].data, "off") == 0) {
|
|
|
2273 plcf->redirect = 0;
|
|
|
2274 plcf->redirects = NULL;
|
|
|
2275 return NGX_CONF_OK;
|
|
|
2276 }
|
|
|
2277
|
|
|
2278 if (plcf->redirects == NULL) {
|
|
|
2279 plcf->redirects = ngx_array_create(cf->pool, 1,
|
|
|
2280 sizeof(ngx_http_proxy_redirect_t));
|
|
|
2281 if (plcf->redirects == NULL) {
|
|
|
2282 return NGX_CONF_ERROR;
|
|
|
2283 }
|
|
|
2284 }
|
|
|
2285
|
|
|
2286 pr = ngx_array_push(plcf->redirects);
|
|
|
2287 if (pr == NULL) {
|
|
|
2288 return NGX_CONF_ERROR;
|
|
|
2289 }
|
|
|
2290
|
|
|
2291 if (cf->args->nelts == 2 && ngx_strcmp(value[1].data, "default") == 0) {
|
|
|
2292 if (plcf->upstream.url.data == NULL) {
|
|
|
2293 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
2294 "\"proxy_rewrite_location default\" must go "
|
|
|
2295 "after the \"proxy_pass\" directive");
|
|
|
2296 return NGX_CONF_ERROR;
|
|
|
2297 }
|
|
|
2298
|
|
|
2299 pr->handler = ngx_http_proxy_rewrite_redirect_text;
|
|
|
2300 pr->redirect = plcf->upstream.url;
|
|
202
|
2301
|
|
|
2302 if (plcf->upstream.uri.len) {
|
|
|
2303 pr->replacement.text = plcf->upstream.location;
|
|
|
2304
|
|
|
2305 } else {
|
|
|
2306 pr->replacement.text.len = 0;
|
|
|
2307 pr->replacement.text.data = NULL;
|
|
|
2308 }
|
|
58
|
2309
|
|
|
2310 return NGX_CONF_OK;
|
|
|
2311 }
|
|
|
2312
|
|
|
2313 if (ngx_http_script_variables_count(&value[2]) == 0) {
|
|
|
2314 pr->handler = ngx_http_proxy_rewrite_redirect_text;
|
|
|
2315 pr->redirect = value[1];
|
|
|
2316 pr->replacement.text = value[2];
|
|
|
2317
|
|
|
2318 return NGX_CONF_OK;
|
|
|
2319 }
|
|
|
2320
|
|
|
2321 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
|
2322
|
|
|
2323 vars_lengths = NULL;
|
|
|
2324 vars_values = NULL;
|
|
|
2325
|
|
|
2326 sc.cf = cf;
|
|
|
2327 sc.source = &value[2];
|
|
|
2328 sc.lengths = &vars_lengths;
|
|
|
2329 sc.values = &vars_values;
|
|
|
2330 sc.complete_lengths = 1;
|
|
|
2331 sc.complete_values = 1;
|
|
|
2332
|
|
|
2333 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
|
2334 return NGX_CONF_ERROR;
|
|
|
2335 }
|
|
|
2336
|
|
|
2337 pr->handler = ngx_http_proxy_rewrite_redirect_vars;
|
|
|
2338 pr->redirect = value[1];
|
|
|
2339 pr->replacement.vars.lengths = vars_lengths->elts;
|
|
|
2340 pr->replacement.vars.values = vars_values->elts;
|
|
|
2341
|
|
|
2342 return NGX_CONF_OK;
|
|
|
2343 }
|
|
|
2344
|
|
|
2345
|
|
|
2346 static char *
|
|
|
2347 ngx_http_proxy_lowat_check(ngx_conf_t *cf, void *post, void *data)
|
|
|
2348 {
|
|
|
2349 #if (NGX_FREEBSD)
|
|
|
2350 ssize_t *np = data;
|
|
|
2351
|
|
222
|
2352 if ((u_long) *np >= ngx_freebsd_net_inet_tcp_sendspace) {
|
|
58
|
2353 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
2354 "\"proxy_send_lowat\" must be less than %d "
|
|
|
2355 "(sysctl net.inet.tcp.sendspace)",
|
|
|
2356 ngx_freebsd_net_inet_tcp_sendspace);
|
|
|
2357
|
|
|
2358 return NGX_CONF_ERROR;
|
|
|
2359 }
|
|
|
2360
|
|
|
2361 #elif !(NGX_HAVE_SO_SNDLOWAT)
|
|
|
2362 ssize_t *np = data;
|
|
|
2363
|
|
|
2364 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
|
2365 "\"proxy_send_lowat\" is not supported, ignored");
|
|
|
2366
|
|
|
2367 *np = 0;
|
|
|
2368
|
|
|
2369 #endif
|
|
|
2370
|
|
|
2371 return NGX_CONF_OK;
|
|
|
2372 }
|
